22ndnd Semester Review Semester Review

FizicksFizicks

How do you calculate the How do you calculate the Gravitational potential Gravitational potential Energy?Energy?

A 60 Kg diver jumps from a 10 m platform. What is their Eg at the top of the platform?

5880 J

What is the formula for What is the formula for calculating the amount of calculating the amount of work done to an object?work done to an object?

How much work is done must an engine of a car do if it exerts a force of 500 N at a constant speed over a distance of 30 m?

15,000 J

What is the formula for What is the formula for kinetic energy?kinetic energy?

A 1.5 Kg kitten is standing on top of a 2 m high fence. The kittens Eg is 29.4 J. Assume all energy is transferred. What is her speed when she hits the ground?

6.3 m/s

What is the work-energy What is the work-energy relationship?relationship?

Hint – look in your unit 1 Energy Notes

What is the formula for What is the formula for calculating the Elastic calculating the Elastic

potential energy?potential energy?How much elastic potential would be stored in a spring if it was stretched 0 to 0.4 m? (spring constant = 8 N/m)

0.64 J

What is the formula for What is the formula for power?power?

How many joules does your 1600 W blow drier transfer if you dry your hair for 5 minutes?

480,000 J

What is the difference What is the difference between a transverse and between a transverse and

longitudinal wave?longitudinal wave?What are examples of each? What are examples of each? (water/slinky? light? Sound?)(water/slinky? light? Sound?)

Interference of waves occur in Interference of waves occur in what type of wave? Explain what type of wave? Explain

what happens during what happens during interference.interference.

What is the difference What is the difference between a node and anti-between a node and anti-

node?node?

What is the Doppler effect?What is the Doppler effect?

How do you calculate Doppler How do you calculate Doppler effect?effect?

You are stopped at a traffic light. An ambulence approaches you from behind with a speed of 18 m/s. The siren produces a sound frequecy of 955 Hz. The speed of sound is 343 m/s. What is the frequency you hear?

1007 Hz

What is a sonic boom?What is a sonic boom?

What is the average hearing What is the average hearing range? What is it measured range? What is it measured

in?in?

In what mediums can sound In what mediums can sound waves travel? Light waves?waves travel? Light waves?

If one frequency is 450 Hz If one frequency is 450 Hz and the beat frequency is 5 and the beat frequency is 5

Hz. What are the two Hz. What are the two potential second frequencies?potential second frequencies?

What is a beat frequency?

445 or 455 Hz Hz

Do you know how to use this Do you know how to use this chart?chart?

RGB

Y

CM

If your answer to that question is No, ASK someone how to use it. It will help you on the final exam!

When we see an object as When we see an object as red, what is really happening?red, what is really happening?

What are the primary colors What are the primary colors of light?of light?

Why are large bodies of water Why are large bodies of water greenish blue?greenish blue?

If I shine red light on a blue If I shine red light on a blue board, what color would it board, what color would it

appear?appear?

What does the law of What does the law of reflection tell us about reflection tell us about

incident and reflected angles?incident and reflected angles?

If you have two plane mirrors If you have two plane mirrors set up at a certain angle, how set up at a certain angle, how

can you determine the can you determine the number of images without number of images without

counting all of them?counting all of them?

What type of image do you What type of image do you get with a get with a planeplane mirror? mirror?

What does a What does a convex mirrorconvex mirror do do to light rays? Converge or to light rays? Converge or

diverge?diverge?

What does a What does a concave mirrorconcave mirror do to light rays? Converge or do to light rays? Converge or

diverge?diverge?

What does a What does a divergingdiverging lenslens do do to light rays?to light rays?

What does a What does a convergingconverging lenslens do to light rays?do to light rays?

How does the Radius of How does the Radius of Curvature (C) relate to the Curvature (C) relate to the

focal point (f)?focal point (f)?

What are the lens and mirror What are the lens and mirror equations and what do the equations and what do the

variables stand for?variables stand for?

What type of particle flows in What type of particle flows in an electrical current?an electrical current?

What do like charges do with What do like charges do with each other & what do each other & what do

opposite charges do with opposite charges do with each other?each other?

How does something become How does something become positively and negatively positively and negatively

charged?charged?

What does the term polarized What does the term polarized mean?mean?

What is the difference What is the difference between charging by between charging by

induction and conduction?induction and conduction?

What are the unit of…What are the unit of…

CurrentCurrentResistanceResistance

VoltageVoltagePowerPowerEnergyEnergy

What is the formula of Ohm’s What is the formula of Ohm’s Law?Law?

What voltage is applied to a 4.0 Ω resistor if the current is 1.5 A?

6 V

What is the formula for What is the formula for electronic power?electronic power?

A car battery causes a current of 2.0 A through a lamp. It produces 12 V across it. What the power used by the lamp?

24 W

What are the characteristics What are the characteristics of a series circuit?of a series circuit?

What are the characteristics What are the characteristics of a parallel circuit?of a parallel circuit?

Good Luck and may the Good Luck and may the Phorce be with you !Phorce be with you !