WorksheetsEnergy Review
Total questions: 20
Worksheet time: 10mins
Amanda listed a few observations in her notebook.
In which observation(s) is kinetic energy transformed to potential energy?
(Choose all that apply)
Observation 1
Observation 2
Observation 3
Observation 4
The image shows three positions (W, X, and Y) of a pendulum during its motion.
If the pendulum swings consistently according to the Law of Conservation of Energy, which statement is true?
Potential energy will be maximum at positions W and Y and minimum at X.
Kinetic energy will be maximum at positions W and Y and minimum at X.
Potential energy will be maximum at positions W and X and minimum at Y.
Kinetic energy will be maximum at positions W and X and minimum at Y.
Examine the electric circuit shown in the image.
What source of energy causes electrical energy to flow in the circuit?
chemical energy
kinetic energy
potential energy
solar energy
A student claims that the energy of the books on the shelves varies.
Which form(s) of energy is (are) referenced by the claim?
chemical potential energy
gravitational potential energy
gravitational and elastic potential energy
elastic and chemical potential energy
A student constructs a new slingshot. To ensure a paper ball will travel the greatest distance, the student varies the amount the rubber band is pulled back from the slingshot.
Which slingshot would cause the paper ball to travel the greatest distance?
A person makes a glass of juice by mixing fruit together in a blender. After drinking the juice, the person goes for a walk.
Which diagrams best model the transformations of energy that occur?
A student rolls a 20-gram ball at different speeds. The table shows the kinetic energy of the ball at each speed.
Based on the data, which statement describes the relationship between the speed and the kinetic energy of the ball?
When the speed of the ball is halved, the kinetic energy doubles.
When the speed of the ball is doubled, the kinetic energy doubles.
When the speed of the ball is doubled, the kinetic energy quadruples.
When the speed of the ball is quadrupled, the kinetic energy is halved.
Examine the diagram that shows various electrical circuits.
What is the original energy source for the electrical circuit in the diagram?
insulated wires
music
solar cells
sun
A lamp was turned on as shown in the diagram.
Which energy transformation occurred?
Chemical energy transformed into light and heat energy.
Electrical energy transformed into light and heat energy.
Heat energy transformed into light and electrical energy.
Light energy transformed into heat and chemical energy.
Fire is created by burning wood as shown in the diagram.
What type of energy is produced by the fire?
chemical
heat
mechanical
solar
The diagram shows a ski jumper as he moves down the course.
At which point is the potential energy the greatest?
J
K
M
N
L
Solar panels are often installed on rooftops of homes and buildings as well as in open fields.
What is the main purpose of installing solar panels?
to capture and convert electrical energy into energy in the form of light waves
to capture and convert energy from light waves into energy in the form of sound waves
to capture and convert energy from light waves into energy in the form of electricity
to capture and convert wind energy into energy in the form of light waves
Examine the electric circuit shown in the image.
What is the correct order of energy transformations that take place in this circuit?
light to electrical to chemical
electrical to light to chemical
chemical to light to electrical
chemical to electrical to light
A student makes a diagram of a cart at three different positions on a hill to demonstrate the transformation of kinetic energy to potential energy as the cart moves through the positions.
Assuming no energy is lost to friction, which graph demonstrates the correct energy transformations at the three positions?
A student makes a model of a circuit, as shown.
The student observes that when the switch is closed, the bulb lights up, and when a piece of paper is held against the bulb for 10 minutes, burn marks form. Based on the observations, which conclusion can the student draw?
Heat energy produces electrical energy.
Chemical energy in batteries is stored as heat.
Chemical energy is released as heat and light energy in circuits.
Heat energy is released as chemical and light energy in circuits.
Michelle has a robot that is powered by batteries. When the switch is on, the robot moves. The energy transformations that take place in the robot are shown in the flow chart.
What form of energy is X?
heat energy
light energy
sound energy
electrical energy
Wind is a source of alternative energy.
What type of energy is used directly by the wind turbines to generate electricity that can be used in homes?
chemical
heat
mechanical
solar
The Theodore Roosevelt Lake is the largest reservoir in Arizona and was created when the Roosevelt Dam was built.
Which form of energy does Theodore Roosevelt Lake have as the water collects in the reservoir behind the dam?
heat
mechanical kinetic
mechanical potential
solar
The image shows a solar panel installed on the roof of a home.
What type of energy conversions does this demonstrate?
heat to electrical to mechanical
heat to mechanical to electrical
solar to electrical to chemical
solar to chemical to electrical
A student listens to the radio while doing homework. Which form of energy conversion occurs in the radio?
electrical to chemical energy
electrical to heat energy
electrical to mechanical energy
electrical to sound energy
