Force and Motion
Work and Power
Energy and Heat
Electromagnetism
Waves
100
What type of movement is happening in this graph?
Constant speed or constant velocity
100
This simple machine is defined as "a long beam resting on a balance point called a fulcrum"
A lever
100
Is wood a good example of an insulator or conductor?
Insulator
100
In terms of magnetic poles and electric charges:
Opposites _________
Likes __________
Opposites Attract
Likes Repel
100
What are the two different types of mechanical waves?
Transverse Waves
Longitudinal/Compression Waves
200
What type of movement is happening here?
Constant acceleration, a gradual speeding up
200
True or false?
"A bicycle is a simple machine"
False.
A bicycle is a compound machine, a combination of simple machines working together.
200
Heat moves in which direction?
From _______ to _______
From HOT to COLD
200
What is another name for the flow of energy through a circuit?
Current
200
Which type of electromagnetic wave can damage skin and cause sunburn?
Ultraviolet waves
300
F = m a
acceleration of gravity = 9.8 m/s2
How much force does a 250 kg rock hit the ground with?
2,450 Newtons
300
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
300
Which ball has more Potential Energy?
The green ball
300
If lightbulb A is unplugged, what will happen to lightbulb C?
It will stay lit.
300
What type of electromagnetic wave is useful for emitting heat?
Infrared waves
400
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."
400
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
400
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
400
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
400
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
500
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/s2
Car B accelerates at 9.16 m/s2)
500
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
500
KE = (1/2) m v2
How much Kinetic Energy does a 80 kg snowboarder have if she is traveling at 10 m/s?
4000 Joules
500
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
500
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