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WorksheetsUnit 1 Energy Review
Total questions: 25
Worksheet time: 16mins
Which of the following best describes the Law of Conservation of Energy?
Energy can be created but not destroyed.
Energy cannot be created or destroyed, only transferred or transformed.
Energy is always lost during a transfer.
Energy can only be stored, not transferred.
When a ball is dropped from a height, what type of energy transformation primarily occurs as it falls?
Chemical energy to electrical energy
Kinetic energy to potential energy
Potential energy to kinetic energy
Thermal energy to sound energy
Which equation correctly represents the kinetic energy ( KE ) of an object with mass m and velocity v ?
KE=m⋅v
KE=21mv2
KE=m+v
KE=m2+v2
A student rubs their hands together and feels them get warmer. What type of energy transfer is taking place?
Kinetic to potential
Chemical to electrical
Mechanical to thermal
Light to sound
If a moving car suddenly stops, what happens to its kinetic energy?
It disappears completely.
It is transformed into other forms, such as heat and sound.
It is stored as potential energy.
It becomes chemical energy.
Which of the following best describes energy transfer in a food chain?
Energy is created at each level.
Energy is transferred from one organism to another.
Energy is destroyed at each level.
Energy remains the same at all levels.
What is the main reason why not all energy is transferred from one trophic level to the next in a food chain?
Some energy is lost as heat.
All energy is transferred efficiently.
Energy is destroyed.
Energy is converted to light.
A battery powers a flashlight. What is the correct sequence of energy transformations?
Electrical → Chemical → Light
Chemical → Electrical → Light
Light → Chemical → Electrical
Electrical → Light → Chemical
Which of the following statements is true about energy transfer in a closed system?
Energy can enter or leave the system.
The total energy remains constant.
Energy is always lost.
Energy is always gained.
If a pendulum swings back and forth, what happens to its energy at the highest point of the swing?
All energy is kinetic.
All energy is potential.
Energy is lost.
Energy is chemical.
If a 2 kg object is moving at 3 m/s, what is its kinetic energy?
3 J
6 J
9 J
18 J
On a roller coaster, where does the cart have the most gravitational potential energy?
At the lowest point of the track
At the highest point of the track
In the middle of the track
Just before stopping
As a roller coaster cart descends from the top of a hill, what happens to its energy?
Kinetic energy is converted to potential energy
Potential energy is converted to kinetic energy
Chemical energy is converted to thermal energy
Electrical energy is converted to sound energy
If a roller coaster cart starts from rest at the top of a hill, which statement is true as it moves down?
Its potential energy increases and kinetic energy decreases
Its potential energy decreases and kinetic energy increases
Both potential and kinetic energy remain the same
Both potential and kinetic energy decrease
At the bottom of a roller coaster hill, the cart is moving fastest. Why?
All of its potential energy has been converted to kinetic energy
It has gained potential energy
It has lost all energy
It has stopped moving
What is the unit of measurement for energy in the International System of Units (SI)?
Watt
Joule
Calorie
Newton
Construct an argument to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.
Energy is created when the potential energy becomes kinetic energy as the car travels down the hill.
Energy is destroyed when the kinetic energy of the moving car changes.
Energy is transferred to or from the object, as seen when a moving car stops and its kinetic energy is converted to heat in the brakes.
Kinetic energy does not affect energy transfer.
If a ball is held at a height, what type of energy does it primarily possess?
Kinetic energy
Thermal energy
Potential energy
Electrical energy
What happens to the potential energy of an object as it falls freely under gravity?
It increases.
It decreases.
It remains constant.
It is converted into sound energy.
Match the following forms of energy
Thermal
Nuclear
Chemical
Electromagnetic
Electrical
True or False: This rock in its current state is an example of potential energy.
True
False
A ball fell to the floor after rolling off a table. What was true of the ball’s energy as it fell?
The ball’s potential energy decreased as it fell, so its kinetic energy must have increased to conserve mechanical energy.
The ball’s potential energy decreased as it fell, so its kinetic energy must have decreased to conserve mechanical energy.
A toy car travels up a ramp. The car’s speed decreases as it moves up the ramp. What happens to the car’s kinetic energy and potential energy as it travels up the ramp?
The car’s kinetic energy and potential energy increase.
The car’s kinetic energy and potential energy decrease.
The car’s kinetic energy increases, and its potential energy decreases.
The car’s potential energy increases, and its kinetic energy decreases.
The diagram below shows a swinging pendulum ball.
Which point represents the pendulum's greatest potential energy?
1
2
3
4
The diagram below shows a car on a roller coaster with four labeled locations.
Between what two locations does the car’s kinetic energy transform into potential energy?
W and X
W and Y
X and Y
Y and Z
