Name ___________________

Force and Motion Test

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])1

Which lab cart has balanced forces acting upon it? (8.6A)

a.

b.

c.

d.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])2

As a student jumps over a hurdle, she loses contact with the ground and moves upward. She returns to the ground because unbalanced forces cause a change in the — (8.6A)

f.

Speed and direction of the student

g.

Mass of the student

h.

Height of the student’s jump

j.

Gravitational pull on the student

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])3

A chair sitting on the floor exerts a force of 20N on the floor. What is the force that the floor exerts on the chair? (8.6A)

a.

10 N

b.

20 N

c.

21 N

d.

40 N

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])4

Some students measure the acceleration of a wheeled cart being acted on by varying forces. The students record their data in the table shown above. According to the data table, how much force is acting on the cart when the students measure an acceleration of 2.6 m/s2? (8.6A*)

f.

13 N

g.

7 N

h.

8 N

j.

12 N

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])5

In the picture above, a boy is trying to pull a dog on a leash, but the dog and the boy are moving in the same direction. Which of the following best describes the forces in this situation? (8.6A)

a.

The forces are balanced, and the net force is zero

b.

The forces are unbalanced, and the boy’s force is greater

c.

The forces are unbalanced, and the dog’s force is greater

d.

The forces are balanced, and the dog is stronger than the boy

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])6

A released balloon flies across the room. The balloon slows down as the forces become —? (8.6A)

f.

Unbalanced

g.

Frictional

h.

Restricted

j.

Balanced

The diagram below shows a boat moving north in a river at 3 m/s while the current in the river moves south at 1 m/s.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])7

How will the boat be affected if it enters a part of the river where the current is moving south at 2 m/s? (8.6A*)

a.

The boat will move slower

b.

The boat will move faster

c.

The boat will stop

d.

The boat will move to the west

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])8

John is an outstanding forward on his club select soccer team. He is known for his ball control and speed. After a game, he often makes a sketch of moves that were successful. The dotted line on his sketch shows the direction the ball was moving just before he kicked it. The direction of his kick is the solid arrow.

(50N)

(10N)

How did the motion of the ball change when John kicked it? (8.6A)

f.

The ball continued moving in the same direction and its speed increased

g.

The ball continued moving in the same direction and its speed decreased

h.

The ball changed directions and its speed increased

j.

The ball came to a complete stop

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])9

A book at rest on a table does not move because ___(8.6A)

a.

There is no force acting on it

b.

The table is pushing the book upward

c.

The forces acting on it are balanced

d.

Gravity is pulling the book downward

For an investigation, a student measures the speed of a cart as it rolls down a ramp. The student then records data in the table below.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])10

Which of these best explains the student’s data? (8.6A* )

f.

The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp

g.

The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity

h.

The speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced

j.

The speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])11

What will be the direction and the net force of the rope? (8.6A)

a.

To the left with a net force of 15 N

b.

To the right with a net force of 15 N

c.

To the left with a net force of 345 N

d.

To the right with a net force of 345 N

A student observes and records observations at a track meet.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])12

Based on the observations, the runners do not accelerate during ___? (8.6B)

f.

Segment A

g.

Segments A and C

h.

Segments B and C

j.

Segments C and D

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])13

Which of the following statements best describes the velocity of a migrating Canadian goose? (8.6B)

a.

The Canadian goose travels 48 km/hr during its yearly migration

b.

The Canadian goose migrates to the north in the summer and to the south in the winter

c.

The Canadian goose travels approximately 50 km/hr to the south

d.

The Canadian goose travels approximately 15 km/hr faster than migrating hummingbirds

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])14

Which car traveled at an average speed of 20kph? (8.6B)

f.

A

g.

B

h.

C

j.

D

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])15

Which object’s motion would most likely be represented by the graph? (8.6B)

a.

The movement of a car driving at a constant speed

b.

The movement of a football being thrown down the field

c.

The airplane touching down on a runway

d.

An accelerating object

The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup track has a changing velocity.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])16

The pickup truck has a changing velocity because the pickup truck _____ (8.6B*)

f.

Can accelerate faster than the other two vehicles

g.

Is traveling in the opposite direction from the other two vehicles

h.

Is traveling on a curve in the road

j.

Needs a large amount of force to move

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])17

Between which two locations would the greatest change in speed most likely occur? (8.6B)

a.

Between S and T

b.

Between T and U

c.

Between U and X

d.

Between T and X

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])18

A car travels at a constant speed of 15 m/s for 2 minutes. The car increases its speed from 15 to 25 m/s during the next minute and then travels at a constant speed of 25 m/s for two more minutes. Which of the following graphs best represents the car’s motion during this 5-minute period? (8.6B*)

f.

g.

h.

j.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])19

A student measures the speed of a toy car at different times as it travels along a track. She records her data in the table above. A graph of these data will most likely look like ____ (8.6B)

a.

b.

c.

d.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])20

A toy train engine rests motionless on a track. One student begins pushing the engine to the right with a force of 2 N. At the same time, another student begins pushing the engine to the left with a force of 5 N. Which of the following best describes the resulting motion of the engine? (8.6B)

f.

It travels at a constant speed

g.

It travels left at an increasing speed

h.

It travels right at a constant speed

j.

It travels right at an increasing speed

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])21

Which swimmer maintained a constant speed during the race? (8.6B)

a.

Mary and John both go the same speed

b.

John

c.

Mary

d.

There is not enough information

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])22

Which swimmer exhibited acceleration (8.6B)

f.

Mary

g.

John

h.

Neither accelerate during the race

j.

There is not enough information

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])23

Amanda placed a small television on a metal rolling cart. On her way to the library, her friend Carlos stepped in front of the cart. Although Amanda stopped suddenly, the television stayed in place on the cart. What kept the television on the cart when she stopped suddenly? (8.6C)

a.

Friction

b.

Magnetism

c.

Air pressure

d.

Buoyant force

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])24

Jason was designing an experiment to see how fast a toy car could travel down a ramp. Which changes would result in the car traveling faster? (8.6C)

f.

Decrease the angle of the ramp, increase the mass of the car

g.

Increase the angle of the ramp, reduce the mass of the car

h.

Decrease the angle of the ramp, reduce the mass of the car

j.

Increase the angle of the ramp, increase the mass of the car

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])25

Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop? (8.6C*)

a.

The car with the smaller mass will require less force to stop than the car with the larger mass

b.

The car with the larger mass will maintain its velocity while traveling down the hill

c.

The car with the smaller mass will take longer to stop than the car with the larger mass

d.

The car with the larger mass will have less inertia than the car with the smaller mass

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])26

A student kicks a ball. It will stay in motion until an equal force is exerted on the ball. Which of these forces would eventually cause the ball to slow down and stop rolling? (8.6C)

f.

Friction and inertia

g.

Gravity and friction

h.

Inertia and gravity

j.

Magnetism and friction

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])27

The cartoon below shows a humorous view of a law of motion.

Which statement best summarizes the scientific concept shown in the cartoon? (8.6C)

a.

A falling body accelerates at a constant speed

b.

The motion of an object is constantly changing due to magnetic forces

c.

The force of friction causes an object in motion to move faster

d.

A body in motion will remain in motion unless influenced by an outside force

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])28

A book is sitting on a dashboard of a car that’s stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Pick the most likely explanation. (8.6C)

f.

Gravity was stronger than the forward motion

g.

The books mass was less than 200g

h.

The book remains at rest and the car moves forward

j.

Air resistance made the book move backward

Pullback distance of balloon launcher

Estimated flinging distance of balloon

100 cm

40 m

110 cm

60 m

120 cm

80 m

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])29

The launching of a water balloon with a three man slingshot is an example of an action reaction. What is the action force? (8.6C)

a.

The water balloon flying through the air

b.

The elastic force of the slingshot being pulled back

c.

The force of gravity pulling the balloon in a curved path

d.

The balloon flying through the air

Four students raced toy cars on a track. The mass and acceleration of each car is recorded in the table below.

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])30

Which toy car had the greatest applied force? (8.6C*)

f.

1

g.

2

h.

3

j.

4

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])31

A rocket moves because the engine exerts a force in one direction against the exhaust gases and the exhaust gases exert a force __________(8.6C)

a.

Against the rocket in the opposite direction

b.

Against the rocket in the same direction

c.

Against the air in the opposite direction

d.

Against the air in the same direction

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])32

A quarter is resting on top of an index card, which is placed across the top of a small cup.

When the card is given a hard horizontal push to the right, what will happen?

f.

The card and quarter will move to the right, off of the cup, and land together

g.

The card and quarter will move to the right and land on the table, but the quarter will travel farther

h.

The card will fall off the cup, but the quarter will fall directly into the cup

j.

The card and quarter will flip off the cup and land upside down on the table

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])33

A child jumps on a trampoline. Which of the following causes the child to rise in the air? (8.6C)

a.

Inertia

b.

Mass

c.

A reaction force

d.

A gravitational force

(1|smicln|Q|smicln|No Value,No Value,No Value,No Value|smicln|100,0|smicln||smicln|1|smicln||smicln|False|smicln|False|smicln|,,,|smicln|[Object],[Object],[Object],[Object])34

A student walks 2 km in 30 minutes. What is the student’s average speed in km/h? Record your answer and fill in the bubbles on your answer document in grid 1. (8.6B*)

Answer Key

1. C TEKS 8.6A

2. F TEKS 8.6A

3. B TEKS 8.6A

4. F TEKS 8.6A

5. C TEKS 8.6A

6. J TEKS 8.6A

7. A TEKS 8.6A

8. H TEKS 8.6A

9. C TEKS 8.6A

10. H TEKS 8.6A

11. B TEKS 8.6A

12. F TEKS 8.6A

13. C TEKS 8.6B

14. G TEKS 8.6B

15. D TEKS 8.6B

16. H TEKS 8.6B

17. A TEKS 8.6B

18. F TEKS 8.6B

19. D TEKS 8.6B

20. G TEKS 8.6B

21. C TEKS 8.6B

22. G TEKS 8.6B

23. A TEKS 8.6C

24. J TEKS 8.6C

25. A TEKS 8.6C

26. G TEKS 8.6C

27. D TEKS 8.6C

28. H TEKS 8.6C

29. B TEKS 8.6C

30. J TEKS 8.6C

31. A TEKS 8.6C

32. H TEKS 8.6C

33. C TEKS 8.6C

34. 4 TEKS 8.6B