Force and Motion

Work and Power

Energy and Heat

Electromagnetism

Waves

What type of movement is happening in this graph?

Constant speed or constant velocity

This simple machine is defined as "a long beam resting on a balance point called a *fulcrum*"

A lever

Is *wood* a good example of an insulator or conductor?

Insulator

In terms of magnetic poles and electric charges:

Opposites _________

Likes __________

Opposites *Attract*

Likes *Repel*

What are the two different types of *mechanical* waves?

Transverse Waves

Longitudinal/Compression Waves

What type of movement is happening here?

Constant acceleration, a gradual speeding up

True or false?

"A bicycle is a simple machine"

False.

A bicycle is a compound machine, a combination of simple machines working together.

Heat moves in which direction?

From _______ to _______

From* HOT* to *COLD*

What is another name for the flow of energy through a circuit?

Current

Which type of electromagnetic wave can damage skin and cause sunburn?

Ultraviolet waves

*acceleration of gravity = 9.8 m/s ^{2}*

How much force does a 250 kg rock hit the ground with?

2,450 Newtons

*W = f d*

How much Work is a football player doing when he exerts 300 N of force during a tackle, shoving the other player 5 meters?

1,500 joules

Which ball has more Potential Energy?

The green ball

If lightbulb A is unplugged, what will happen to lightbulb C?

It will stay lit.

What type of electromagnetic wave is useful for emitting heat?

Infrared waves

Which of Newton's 3 Laws is best displayed in the picture?

Newton's 1st Law (The Law of Inertia)

"Things at rest stay in rest, things in motion stay in motion, unless acted on by an outside force."

*P = W / t*

If a single light bulb needs 40 watts of Power, How many bulbs could be lit by a generator doing 1,000 joules of Work every 5 seconds?

5 light bulbs

True or false?

"All particles are moving, all the time"

True.

Heat causes particles to vibrate. Hotter particles vibrate more, but even colder particles vibrate very slowly

*V = I R*

A motor has a resistance of 5 Ω. If the circuit is running a current of 5 A, how much voltage is the power source producing?

25 Volts

*v = λ f*

A wave particular wave has a wavelength of 5 m and a frequency of 60 Hz. What is the speed of this wave?

300 m/s

*a = Δv / t*

Which car is accelerating faster?

Car A can go from 10 m/s to 60 m/s in 5 s.

Car B can go from 20 m/s to 75 m/s in 6 s.

Car A

(Car A accelerates at 10 m/s^{2}

Car B accelerates at 9.16 m/s^{2})

*P = W / t*

*W = f d*

A factory manager uses 20 N of force to push a crate 10 meters in only 5 seconds. How much Power did she require?

40 Watts

*KE = (1/2) m v*^{2}

How much Kinetic Energy does a 80 kg snowboarder have if she is traveling at 10 m/s?

4000 Joules

*V = I R*

If a circuit is powered by an 8 V battery, what is the current required to power a 4 Ω lightbulb?

2 amps

*v = λ f*

A sound wave is traveling 340 m/s. If it's frequency is 20 Hz, what is the sound wave's wavelength?

17 meters

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