Types of Energy
True or False
Energy CAN be created and destroyed
FALSE
Which is evidence that light transfers energy?
A. We need light to see.
B. Light travels in a straight line.
C. Light is a mixture of all the colors of the spectrum.
D. Light energy can be collected with solar panels and converted into electricity
D. Light energy can be collected with solar panels and converted into electricity
A young girl is using her hand to push a toy car across the floor. What is causing the toy car to move?
A. the force of gravity pushing on the car
B. the force of gravity pushing on the hand
C. the force of the floor pushing on the car
D. the force of the hand pushing on the car
D. the force of the hand pushing on the car
Which of these is the best conductor of electrical energy?
A. a metal fork
B. a wooden pencil
C. a rubber paper clip
D. a piece of cardboard
A. a metal fork
Which forms of energy travel as waves?
A. wind and heat
B. light and sound
C. electrical and wind
D. sound and geothermal
B. light and sound
An electric clock in a classroom will not run if it is not plugged in to an electric outlet. What does the clock get from the electric current from the outlet?
A. batteries
B. chemicals
C. energy
D. time of day
C. energy
Which energy conversion happens in electric motors?
A. heat to mechanical
B. electrical to motion
C. radiant to electrical
D. nuclear to geothermal
B. electrical to motion
When you walk across a carpet, you become negatively charged. Then you touch a metal doorknob. Why might you receive a shock?
A. Both protons and electrons jump from you to the doorknob.
B. Electrons jump from you to the doorknob.
C. Protons jump from you to the doorknob.
D. The protons jump from you to the doorknob and the electrons jump from the doorknob to you.
B. Electrons jump from you to the doorknob.
Which of the following is visible to a person only because light from another source bounces off of it?
A. lightning
B. flashlight
C. cloud
D. sun
C. cloud
The water in a swimming pool tends to be warmer in the daytime and cooler at night. What natural source of energy causes this temperature difference?
A. chemical energy
B. sound energy
C. mechanical energy
D. solar energy
D. solar energy
Which is NOT something that energy can do?
A. be completely used up
B. cause an object to move
C. change an object's temperature
D. change into other forms of energy
A. be completely used up
Which of these stops the flow of an electrical current?A A. wire
B. a resistor
C. an open switch
D. a closed switch
C. an open switch
Chemical energy can be used to produce kinetic energy. Which activity is an example of using chemical energy to produce kinetic energy?
A. flying a kite
B. using gasoline to run an engine
C. using a magnet to pick up a steel nail
C. turning on a lightswitch
B. using gasoline to run an engine
Alex wanted to make some rice. He put water in a pot and put the pot on the electric stove. In order for the rice to cook, the electric energy from the stove was transformed.
How was the energy transformed for the water to boil?
A. from electrical to wind energy
B. from electrical to sound energy
C. from electrical to thermal energy
D. from electrical to magnetic energy
C. from electrical to thermal energy
Plants need energy to grow. Which would be the best way to show that plants need light?
A. Grow a plant in the dark and observe its growth
B. Put plants under different kinds of light and compare how they grow
C. Find plants that have grown in sunlight and measure the height of each one
D. Grow plants with light and plants without light and compare how they grow
D. Grow plants with light and plants without light and compare how they grow
BONUS: What energy is causing change in the plant?
Ms.Davis is an electrician. She uses various tools for her work. Why is it important for her tools to have plastic or rubber handles?
A. plastic and rubber provide more comfort for her when using the tools
B. plastic and rubber are great conductors so she stays safe
C. plastic and rubber are insulators so she stays safe
D plastic and rubber are more durable so they last longer
C. plastic and rubber are insulators so she stays safe
An object that has thermal energy can lose some of that energy. Which answer describes an example of the thermal energy of a material decreasing?
A. eggs cooking in a pan
B. water freezing into ice
C. snow melting in the spring
D. a ball bouncing on the floor.
B. water freezing into ice
You use energy transformations every day. Which of these is a way that you would use the transformation of electrical energy to motion energy?
A. watching your favorite show on television
B. taking an elevator to the top of a tall building
C. listening to music on your phone while you walk to school
D. turning on the lamp on your desk, so you can see your homework
B. taking an elevator to the top of a tall building
Students were asked to write a response as to how energy is used when driving a car. Their responses are written in the table below.
STUDENT RESPONSES
Student 1-to stop a car
Studen 2-to turn a car
Student 3-to cause a car to go faster
Student 4-to allow a car to move in a straight line
Which student’s response is least likely indicating a change in motion?
A. Student 1
B. Student 2
C. Student 3
D. Student 4
D. Student 4
Tracy builds a circuit in order to light a bulb. The circuit includes light bulb, battery, copper wire, and switch. After building the circuit, Tracy finds that the bulb will not light.
Which statement is NOT a possible explanation as to why the bulb remains unlit?
A. The switch is closed.
B. The light bulb is burned out.
C. The battery is not providing enough energy.
D. The wires in the circuit do not make a complete loop.
A. The switch is closed.