IPS Terminal Velocity Expedition 2:

A Universe of Motion

Discover how motion is relative to a standard reference point.

Distinguish between scalar and vector quantities of motion.

Explore the motion of an object by describing its position, direction, and speed.

Create and interpret a variety of motion graphs.

Discover how distance/displacement, speed/velocity, acceleration, and momentum are all connected by the rate of change.

Apply the Law of Conservation of Momentum to analyze crash tests performed at the Insurance Institute for Highway Safety (IIHS).

• Speed is the distance traveled over a given period of time. Instantaneous speed is the speed of an object at an exact moment in time.

• Speed is the distance traveled over a given period of time. Instantaneous speed is the speed of an object at an exact moment in time.

• The slopeof the line on a graph of distance vs time indicates how fast the object is going

Stage 1: On the Move

• Speed is an example of a scalar quantity. It only shows "how fast" the car is traveling, and does not show in which direction the car is traveling.

• Velocity- A vector quantity

Stage 1: On the Move

• Velocity is a vector quantity which represents both the speed and the direction in which an object is moving.

• Acceleration describes these changes in speed and direction.

• When the velocity of a moving object decreases, it is said to decelerate, or undergo negative acceleration.

• Acceleration describes changes in direction as well as those in speed. Starting acceleration is zero. The time during which it moved is plotted horizontally on the x-axis. Its velocity is plotted vertically on the y-axis. The slope of the line illustrates whether the object is speeding up or slowing down.

• So far we have explored linear motion, or motion in a line or in one dimension.

• _________________ is an object’s mass multiplied by its velocity.

• If the velocities of two objects are the same, the object with more mass will have more momentum.

• If the masses of two objects are the same, the object with a higher velocity will have more momentum.

• ___________________ is an object’s resistance to change in its state of motion.

• The law of conservation of momentum tells us that momentum is neither lost nor gained, but rather is transferred between objects.