Name That Energy
The type of energy stored in a battery.
What is chemical energy?
A student turns on a hair dryer. The hair dryer uses electricity to spin its fan and blow air.
What is the main energy transformation?
Electrical energy → mechanical energy
The variable you change on purpose in an experiment.
What is the independent variable?
Two students push a box from opposite sides with the same amount of force. The box does not move. Are the forces equal or unequal?
What is equal?
A push or a pull is called a…
What is a force?
The type of energy produced when you turn on a radio.
What is sound?
A battery-powered toy car starts moving when a student turns it on. What is one energy transformation taking place?
Chemical → electrical → mechanical
The variable you measure/observe as the result.
What is the dependent variable?
When a batter hits a pitched ball, the ball will most likely…
What is change direction?
When an object speeds up, slows down, or changes direction, that’s a change in…
What is motion?
The type of energy involved when shooting a ball (movement/doing work).
What is mechanical energy?
A student plugs in a toaster.
Electrical → thermal
In a ramp experiment, “how far the ball traveled after 10 seconds” is the…
What is the dependent variable?
A magnet is placed near a paper clip. Without touching the paper clip, the magnet causes it to move toward the magnet.
What type of force is acting on the paper clip?
A force at a distance.
I'm stored inside food and batteries. You can't see me, but I can be used to make things happen. What type of energy am I?
Chemical energy
The type of energy that lets you see and comes from a flashlight beam.
What is light energy?
A student strikes a drum.
Mechanical energy → sound energy
A student thinks that heavier paper airplanes will travel farther. What should the student change and what should the student measure?
Change the mass/weight of the airplane; measure the distance it travels.
Two objects rubbing against each other; slows object down
What is friction?
What tool measures the force needed to pull objects?
What is a spring scale?
A blender is plugged into an outlet and its blades begin spinning. What two forms of energy are involved
Electrical energy and mechanical energ
A candle is burning. The chemical energy stored in the candle is released as the candle burns.
What two forms of energy are produced by the burning candle?
Light energy and thermal energy
Jalen wants to find out which type of surface allows a toy car to travel the farthest. He rolls the same toy car from the same starting point on carpet, tile, and a wooden floor. What is one piece of equipment he will need?
Ruler or meter stick
If Josh pushes a box with MORE force than Chris, the box will move toward…
Chris
A student pushes an empty shopping cart. The cart begins moving forward. The student then puts several heavy objects inside the cart.
Will the cart be easier or harder to move after the objects are added? Explain why.
Harder to move because the cart has more mass.