Font size
WorksheetsScience Energy & Waves Unit Review
Total questions: 53
Worksheet time: 4hrs 53mins
Scientists say that energy is conserved because energy
cannot be transferred between objects.
is created when a still object starts moving.
cannot be created or destroyed.
can be stored in an object raised to a height.
While playing outside in the snow, Mario pushes Kaylana down a steep sledding hill as shown here. Which of the following BEST explains when the sled gains the most energy of motion?
when Kayla gets on the sled
when Kayla gets off the sled
when Mario pushes the sled with his hand
when the sled stops at the bottom of the hill
Look at the picture of Phillip dropping a rock into the dirt. In this diagram, in which position does the ROCK have only stored energy?
position 1
position 2
position 3
position 4
When playing golf with her friends, Melina hits the ball off the ground using her fastest swing. When does her ball have the MOST energy of motion?
when it is sitting on the ground
when she hits it hard off the ground
when it lands on the grass and stops moving
when she picks it up and puts it back in her golf bag
Adam and Sam decide to go explore a mountain stream. When they get there, Sebastian drops a rock into the stream and Adam photographs the splash shown here. Which answer BEST explains why the water splashes up in the photo?
deep water has more energy
cold water has more energy
some of the energy from the water is transferred to the rock
some of the energy from the rock is transferred to the water
If two objects with different weights are moving at the same speed, the lighter object has
less energy than the heavier object.
more energy than the heavier object.
an unpredictable amount of energy.
the same amount of energy as the heavier object.
When an object begins to slow down, its energy of motion
increases
decreases
remains the same
is completely gone
How can a ball be given stored energy?
Roll it down a hill.
Place it on the top of a ramp.
Drop it from the top of a ladder.
Throw it to another person.
What happens when two objects collide?
Energy is changed into force.
Energy is transferred from one object to another.
Energy is created and the objects move faster.
Energy is destroyed and the objects move slower.
While playing with toy cars, Kirsten and Lucas each push a car toward the center of the room. What happens when the toy cars collide, as shown in the photograph?
Energy is lost.
Energy is gained.
Energy is not changed.
Energy is transferred.
In the image, Jonah is about to kick the football. Which of the following BEST explains how Jonah can tell that energy transfers from his foot to the ball during the collision?
The ball does not move.
The speed of the ball changes.
The weight of the ball changes.
The weight and speed of the ball change.
While playing soccer after school, Graciela (on the left) and Henry (on the right) both kick the ball at the same time. Graciela kicks the ball harder than Henry kicks the ball. What happens to Henry’s ball? Use evidence from the diagram.
It does not return to Henry.
It returns to Henry at the same speed.
It returns to Henry at a faster speed.
It returns to Henry at a slower speed.
Look at the photograph of Marie hitting a golf ball with a golf club. Right when the photo was taken, the photographer heard a loud sound. Which BEST explains why the photographer heard a sound during the collision?
The motion of the ball changed.
The motion of the club changed.
Some of the energy from the collision transferred to the air.
Some of the energy from the collision transferred to the ball.
Choose ALL things that could occur when light energy is transferred to an object?
The light changes the speed of the object.
The light passes through the object.
The object absorbs some or all of the light.
The light is reflected.
The light changes the temperature of the object.
Catherine is learning to play the guitar. When she first opens the guitar case, she uses her finger to pluck a string. Look at the photo to see what happens.
Which BEST explains what occurs next?
The vibrating string creates energy, resulting in a sound.
The vibrating string reflects energy in the air, resulting in a sound.
The vibrating string absorbs energy in the air, resulting in a sound.
The vibrating string transfers energy to the air, resulting in a sound.
Look at the picture. It shows what Jamie sees at a parade. It is very loud at the parade. Which BEST explains why Jamie can feel the ground vibrating?
Energy from the sound of the drums transfers to his ears.
Energy from the sound of the drums transfers to the road.
Energy from the drums is carried by heat and absorbed by the road.
Energy from the drums is carried by motion and absorbed by his ears.
While he is making soup in a pot, Mr. Yan turns on the stove. Which BEST explains what happens when he turns on the stove?
He adds energy and this causes the temperature in the pot to rise.
He adds energy and this causes the temperature in the pot to decrease.
He takes away energy and this causes the temperature in the pot to rise.
He takes away energy and this causes the temperature in the pot to decrease.
Mrs. Carlisle enjoys growing plants inside her house, and she likes to keep them in the kitchen next to the window. Which BEST explains what happens to her plants to help them grow?
They destroy energy from the light coming through the window.
They reflect energy from the light coming through the window.
They absorb energy from the light coming through the window.
They transfer energy from the light coming through the window.
What is an electric current?
a mix of heat and sound
a collision of objects
group of magnets
a flow of electric charges
Jeremiah receives this remote control car as a gift. Based on evidence in the photo, where does the car’s motor MOST LIKELY get its energy from?
steam
batteries
solar panels
an electrical outlet
Emmanuel is filling a pot of water to make pasta. Emmanuel’s grandmother turns on the burner. Look at the photograph. Which of the following BEST explains how the pan warms up?
The energy lost by the electric current becomes light that warms the pan.
The energy lost by electric current becomes heat that warms the pan.
The energy lost by the electric current becomes light that cools the pan.
The energy lost by the electric current becomes heat that cools the pan.
Alejandra’s home has solar panels on the roof, as shown below. When it is sunny, the energy from the solar panels heats up the water tank. It has been cloudy for two weeks straight. Which of the following is MOST LIKELY to happen?
The microwave will not heat food.
The washing machine will not start.
The water in the shower will be cold.
The lightbulb in the lamp will not give off light.
Something is wrong with Mr. Bancroft’s electric lawn mower. He brings it to a mechanic. The mechanic explains that the motor is not working. He shows Mr. Bancroft this diagram to show how energy flows in a motor. Based on the diagram, what is the correct flow of energy?
magnet -> electric current -> motion
electric current -> magnet -> motion
motion -> electric current -> magnet
magnet -> motion -> electric current
Choose TWO correct explanations for why our eyes interpret this shirt as the color blue.
Blue light waves transfers through the shirt and back to our eyes.
Blue light waves reflect off the shirt and enter our eyes.
All colored light waves except blue are absorbed by the shirt.
All colored light waves are absorbed into the shirt and no color is reflected back to our eyes.
Electrical wires are made of metals because metals are
conductors
insulators
Electrical wires are covered in plastic because plastic is a(n)
conductor
insulator
A series circuit contains how many paths on which electricity can flow?
one path
more than one path
A parallel circuit contains how many paths on which electricity can flow?
one path
more than one path
Choose the type of circuit that is being described: when one bulb is disconnected, all bulbs in the circuit will go out.
series circuit
parallel circuit
What type of circuit is shown here?
open (incomplete) circuit
closed (complete) circuit
Cassidy and her family arrive at the beach after eating lunch. Cassidy is so excited. She jumps out of the car and runs toward the waves. Based on the evidence in the photograph, which claim BEST supports what Cassidy is doing?
She is destroying energy.
She is creating new energy.
She is releasing stored energy from food.
She is storing energy from food for later use.
A ski area wants to put in a new high-speed chairlift. The chairlift needs electricity. The ski area is in a national forest and needs to protect the wildlife in the area. There are no power lines in the area. The ski area’s owner hires a team of engineers to design a plan for an environmentally friendly chairlift. What is a major constraint (limitation) the engineers have to work with to solve this problem?
The chairlift is too slow.
There are too many trees in the ski area
The ski area is too far in the mountains and nobody is coming to it.
The source of electricity needs to be safe for the area’s wildlife.
Kim works as a science public information officer for the Hoover Dam. She is in charge of explaining to visitors how the dam works. Which of the following is the BEST explanation Kim could give to a visitor who asked about the dam?
The dam makes no energy.
The dam uses energy from a generator to power itself.
The dam makes stored energy by holding back water from a big river.
The dam makes stored energy by gathering wind power from spinning turbines.
When someone says that they are “using energy,” they are talking about
creating stored energy
releasing stored energy
destroying stored energy
changing light energy into stored energy
Suppose a park hires a group of engineers to design a new ranger station. The first step the team of engineers takes is
figuring out the problem.
solving all of the issues.
choosing the best solution
coming up with several different solutions
Choose ALL of the objects that have stored energy
a tank of gasoline
a rock sitting by itself on the ground
a dam blocking water
a charged battery
Ryan wants to send a picture over a telegraph. He would need to send it as a series of dots and dashes. The picture shows the process. Which of the following represents the CORRECT code used to send the picture?
If a square is mostly white, send a dash. If a square is mostly black, send a dot.
If a square is mostly white, send a dot. If a square is mostly black, send a dash.
If a square is mostly white, leave it blank. If a square is mostly black, send a dot.
If a square is mostly white, leave it blank. If a square is mostly black, send a dash.
Bodie is looking at the diagram below to translate a message from Morse code. He translates it into a code of 0s and 1s. Bodie writes the word dog as 100 111 110. What does the number 1 represent in Morse code, and how did you figure it out?
A dot, because each dash is a 0 and each dot is a 1.
A dash, because each dash is a 1 and each dot is a 0.
A dot, because the first set of numbers represents the D and is all 1s.
A dash, because the first set of numbers represents the D and is all 1s.
Kate is using a digital device to send and receive messages sent as electrical signals. Patterns of 1s and 0s are used to represent the message. Which type of device could Kate possibly be using?
cell phone
telegraph
electric speaker
electric microphone
Which of the following describes the wavelength of a water wave?
the distance from crest to trough
the distance from trough to rest position
the distance from trough to trough
the distance from rest position to crest
What happens when the wavelength of a sound wave decreases?
The sound gets softer.
The sound gets louder.
The frequency gets lower.
The frequency gets higher.
What happens when you decrease the amplitude of a sound wave?
The sound gets softer.
The sound gets louder.
The sound has a higher pitch.
The sound has a lower pitch.
A wave with a large amplitude
must have a small crest
must have a long wavelength
must have a tall crest
must have a short wavelength
In which of these waves does matter move only from side to side?
water waves
sound waves
surface waves
waves on a string
The point where the matter carrying a sound wave is spread apart is known as the wave’s _________.
loudness
rest position
crest
trough
When you throw a pebble into a puddle, the point where the ripple is the highest is called the ___________.
surface
crest
trough
rest position
Audrey is training her new puppy. Which training method uses sound waves to send information to the puppy?
replacing something the puppy is chewing on with a toy bone
rewarding the puppy with a treat when she goes into her crate on her own
snapping your fingers and pointing down when the puppy jumps on someone
petting the puppy’s head and giving her a treat when she uses the bathroom outside
Bella knows that sounds are often used to alert people of something. She is creating sound effects for a video. She wants a sound effect that communicates an alarm that can be heard over a long distance by the largest number of people. Which sound would BEST communicate this?
a loud whistle
the squeal of an animal
the siren of an emergency vehicle
a beeping sound coming from a clock
Ashton’s gym class plays with a parachute, as shown in the picture below. The parachute is an example of
water wave
wave on a string
wave amplitude
sound wave
How can two drums be used to send long distance messages?
Both drums must be digital.
The drums must be played by different drummers.
Both drums must be connected to the internet.
One drum can have a low pitch, and the other a high pitch.
Ariana and her family go for a drive along the coast. Above the water, they see sharp cliffs. which BEST explains how the motion of the waves impact the cliffs over time?
The waves change the shape of the cliffs due to weathering the rocks.
The waves increase the size of the cliffs due to weathering the rocks.
The waves increase the size of the cliffs by pushing them farther away.
The waves change the shape of the cliffs by pushing them closer together.
A water wave hits a rock and breaks pieces off, making it change shape. This is known as
________.
deposition
watering
weathering
tsunami
A great amount of energy is being transferred by this speaker. What is the amplitude AND volume of the sound waves causing the glass to break?
large amplitude
small amplitude
quiet volume
loud volume
