WorksheetsEnergy and Waves
Total questions: 76
Worksheet time: 38mins
Kinetic Energy Equation:
KE = 1/2 m v2
The "m" is...
Velocity
Kinetic Energy
Height
Mass
Kinetic Energy Equation:
KE = 1/2 m v2
The "v" is...
Velocity
Kinetic Energy
Height
Mass
Gravitational Energy Equation:
GPE = m g h
The "m" is...
Mass
Gravitational Energy
Height
Gravity (9.8 m/s2)
Gravitational Energy Equation:
GPE = m g h
The "g" is...
Mass
Gravitational Energy
Height
Gravity (9.8 m/s2)
Gravitational Energy Equation:
GPE = m g h
The "h" is...
Mass
Gravitational Energy
Height
Gravity (9.8 m/s2)
Mass is measured in...
meters (m)
Joules (J)
kilograms (kg)
meters/second (m/s)
Velocity is measured in...
meters (m)
Joules (J)
kilograms (kg)
meters/second (m/s)
Energy is measured in...
meters (m)
Joules (J)
Newton/meter (N/m)
meters/second (m/s)
Height (h) is measured in...
meters (m)
Joules (J)
Newton/meter (N/m)
meters/second (m/s)
If a ball rolls with a velocity of 4 m/s, and it has a mass of 1 kg, how much KE does it have?
8 J
2 J
4 J
16 J
If a toy car moves with a velocity of 2 m/s, and it has a mass of 2 kg, how much KE does it have?
8 J
2 J
4 J
16 J
A brick is held 10 m above the ground, and it has a mass of 1 kg. How much GPE does it have?
10 J
98 J
9.8 J
49 J
Initially, the cart is not moving, and the spring is compressed. What type(s) of energy is in the system?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
What type(s) of energy does the cart have when it is upside down and moving in the FRICTIONLESS loop?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A cart is rolling along the floor. It is NOT touching the spring. What type(s) of energy is in the system? INCLUDE FRICTION.
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A cart rolls into a spring. The spring is compressed and the car STOPS. What type(s) of energy is in the system when the car is stopped?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A ball is at the TOP of a FRICTIONLESS ramp, not moving. What type(s) of energy is in the system?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A ball is moving on the floor at the BOTTOM of a FRICTIONLESS ramp. What type(s) of energy is in the system?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A ball is moving in the MIDDLE of the FRICTIONLESS ramp. What type(s) of energy is in the system?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
A skater is rolling down a FRICTIONLESS track. What type(s) of energy is in the system?
Elastic Energy (EPE)
Gravitational Energy (GPE)
Kinetic Energy (KE)
Loss (L)
What is an example of elastic energy (EPE)?
A stretched rubber band.
A person standing at the top of a ladder.
A ball rolling on the floor.
Friction between car tires and the road.
What is an example of loss (L)?
A stretched rubber band.
A person standing at the top of a ladder.
A ball rolling on the floor.
Friction between car tires and the road.
What is an example of gravitational energy (GPE)?
A stretched rubber band.
A person standing at the top of a ladder.
A ball rolling on the floor.
Friction between car tires and the road.
What is an example of kinetic energy (KE)?
A stretched rubber band.
A person standing at the top of a ladder.
A ball rolling on the floor.
Friction between car tires and the road.
What happens to the kinetic energy (KE) when the mass is increased?
It increases.
It decreases.
It stays the same.
What happens to the kinetic energy (KE) when the velocity is decreased?
It increases.
It decreases.
It stays the same.
What happens to the elastic energy (EPE) of a rubber band that is stretched MORE?
It increases.
It decreases.
It stays the same.
You lift your backpack from the floor to the lab table. What happens to the gravitational energy (GPE) of the backpack?
It increases.
It decreases.
It stays the same.
You lift a golf ball and a bowling ball up in the air, 1 m above the ground. Which has more gravitational energy (GPE)?
The golf ball.
The bowling ball.
They both have the same GPE.
At the TOP of the ramp, the ball has 100 J of energy. If the ramp is FRICTIONLESS, how much energy does the ball have at the BOTTOM of the ramp?
Less than 100 J
100 J
More than 100 J
At the TOP of the ramp, the ball has 12 J of energy. At the BOTTOM of the ramp, the ball has 8 J of energy. How much energy is thermal (L) due to friction?
20 J
4 J
8 J
It is not possible to tell.
Law of Conservation of Energy says that...
You can create energy.
You can destroy energy.
Energy changes forms, but the total amount stays the same.
A biker rides up a frictionless hill. The biker's total energy is 150 J at the BOTTOM of the hill, and 200 J at the TOP of the hill. Why?
50 J of work is done by pedaling
50 J of loss occurs due to friction
50 J of GPE is created by moving uphill
50 J of KE is created by moving faster
A ball is dropped and bounces up to a LOWER height. Why? Pick TWO correct answers.
Work was done
Loss occurred
There is friction and air resistance
Energy in the ball stays the same
In order for a sound wave to travel, it needs...
a crest
a wavelength
a medium
a frequency
The amplitude of a transverse wave can be measured by finding the distance from... (Select TWO Answers!)
Crest to Crest
Trough to Trough
Center Line to Crest
Center Line to Trough
The wavelength of a transverse wave can be measured by finding the distance from... (Select TWO Answers!)
Crest to Crest
Trough to Trough
Center Line to Crest
Center Line to Trough
In which type of wave does the medium vibrate PARALLEL to the direction of wave travel?
Longitudinal Wave
Transverse Wave
In which type of wave does the medium vibrate PERPENDICULAR to the direction of wave travel?
Longitudinal Wave
Transverse Wave
Frequency is...
the number of seconds it takes for one wave to pass by
the distance from crest to crest
the number of waves that pass by each second
the distance from the center line to the crest
Frequency is measured in...
Hertz (Hz)
Meters (m)
Meters/Second (m/s)
Seconds (s)
Wavelength is measured in...
Hertz (Hz)
Meters (m)
Meters/Second (m/s)
Seconds (s)
Wave speed is measured in...
Hertz (Hz)
Meters (m)
Meters/Second (m/s)
Seconds (s)
If the wave speed is 100 m/s, and the wavelength is 2 m, what is the frequency?
200 Hz
102 Hz
98 Hz
50 Hz
If the wavelength is 20 m, and the frequency is 5 Hz, what is the wave speed?
25 m/s
0.25 m/s
100 m/s
4 m/s
If the wave speed is 40 m/s, and the frequency is 8 Hz, what is the wavelength?
32 m
5 m
320 m
0.2 m
What is the compact/higher pressure part of a longitudinal sound wave?
Crest
Trough
Compression
Rarefaction
What is the strecthed out/lower pressure part of a longitudinal sound wave?
Crest
Trough
Compression
Rarefaction
The pitch of a sound wave is determined by its...
Amplitude
Wavelength
Wave Speed
Frequency
The loudness (volume) of a sound wave is determined by its...
Amplitude
Wavelength
Wave Speed
Frequency
The energy of a wave is determined by its...
Amplitude
Wavelength
Wave Speed
Frequency
The wave speed of a wave is determined by its...
Amplitude
Wavelength
Medium
Frequency
Which wave has the HIGHER pitch?
Wave A
Wave B
The waves have the same pitch
Which wave is louder (higher volume)?
Wave A
Wave B
The waves have the same pitch
Which sound has the LOWER pitch?
Sound A
Sound B
Both sounds have the same pitch
Which sound is QUIETER (lower volume)?
Sound A
Sound B
Both sounds have the same pitch
Which wave has more energy?
Wave E
Wave F
Both waves have the same amount of energy
Which wave has a LOWER frequency?
Wave E
Wave F
Both waves have the same frequency
What does this picture show? Select TWO answers.
Standing Wave
Constructive Interference
Destructive Interference
Superposition
What does this picture show? Select TWO answers.
Standing Wave
Constructive Interference
Destructive Interference
Superposition
What happens to these waves AFTER they combine?
Wave A keeps moving right, Wave B keeps moving left
Wave A reflects and moves left, Wave B reflects and moves right
Both waves stay combined and travel together on the rope.
What does this picture show?
Standing Wave
ONLY Constructive Interference
ONLY Destructive Interference
Beats
Antinodes are formed by...
Constructive Interference
Destructive Interference
Beats
Nodes are formed by...
Constructive Interference
Destructive Interference
Beats
This wave shows "beats." What would the wave sound like?
The pitch would get higher and lower
The volume would get softer and quieter
BOTH the pitch and volume would change
Waves carry/transport...
Matter
Energy
BOTH Energy and Matter
NEITHER Energy nor Matter
The crest is moving right, and when it reflects off the FIXED end, it becomes a trough moving left. If these two waves combine, it would be...
Constructive Interference
Destructive Interference
An increase in energy
Beats
The crest is moving right, and when it reflects off the FREE end, it becomes a crest moving left. If these two waves combine, it would be...
Constructive Interference
Destructive Interference
A decrease in energy
Beats
These waves pass by in 1 second. Which wave has the LOWEST frequency?
The red wave
The blue wave
The green wave
All three waves have the same frequency
A ship uses sonar to find the depth of the seabed. If the speed of sound in water is 1500 m/s, and it takes 4 seconds to hear the "ping," how deep is the seabed? V=d/t
6000 m
12,000 m
3000 m
1500 m
A quiet bird and a loud bird make sounds that travel through AIR. Which wave is FASTER?
The quiet wave is faster
The loud wave is faster
Both waves have the SAME speed, because it's the SAME medium
A student yells, and hears an echo 1 second later. The speed of sound in air is 340 m/s. How far away is the wall from the student?
340 m
680 m
170 m
220 m
You strike the PURPLE key on the toy xylophone, then the RED key. What happens to the wavelength and frequency of the sound wave?
The wavelength and frequency both increase
The wavelength and frequency both decrease
The wavelength decreases and the frequency increases
The wavelength increases and the frequency decreases
A sound wave is traveling in steel, then moves into air. What happens to the wave speed and wavelength?
Both the wave speed and wavelength increase
Both the wave speed and wavelength decrease
The wave speed increases and the wavelength decreases
The wave speed decreases and the wavelength increases
How do you change the speed of a wave?
Change the amplitude
Change the frequency
Change the medium
Change the wavelength
Wave A's amplitude is 5 cm and Wave B's amplitude is 10 cm. What is the maximum interference/amplitude of the waves when they combine?
5 cm
10 cm
50 cm
15 cm
