Experiments
Light
Energy Transformation
Circuits
Forces
100
To measure how far a toy truck rolls after leaving a ramp, a student would need this specific tool.
Ruler or meterstick
100
Light travels in a ____ line.
Straight
100
The energy of motion is also called ______ energy.
Mechanical
100
B - one light will remain on
100
Which force is responsible for pulling a car from the top of a ramp to the bottom?
Gravity
200
Define 'independent variable'
This is what is changed on purpose in an experiment.
200
Explain why the fish appears somewhere different than where it actually is.
Light bends or changes direction when it travels from the air into the water (two different mediums). This is called refraction.
200
The energy that will be used to create light is stored in which part of the flashlight?
The battery - the chemical energy stored in the battery will transform to electrical energy and then into light energy in this flashlight.
200
Is this a closed or an open circuit? Why or why not?
This is an open circuit because the batteries are not connected properly (negative to negative).
200
Define 'friction'
A force that resists (stops) or slows motion when two surfaces rub together.
300
Define 'dependent variable'
This is what is measured in an experiment.
300
How is the light interacting with each object?
Object 1: Refracting
Object 2: Absorbing
Object 3: Reflecting
300
Which of these transforms mechanical energy into electrical energy? Select all that apply. 
Wind turbine and hydroelectric dam
300
Which switch or switches must be turned on for bulb 1 to bulb 1 to light up and bulb 2 to remain dark?
Switch 1 and 2 must be closed for bulb 1 to light up and bulb 2 to remain dark.
300
In this game of tug-o-war, is each TEAM pulling with the same force or is each TEAM MEMBER pulling with the same amount of force? Which team wins: right or left?
In this game, each individual TEAM MEMBER is pulling with the same amount of force. The team on the right wins because they are pulling with more total force.
400
When testing how the height of a ball affects the size of the crater it makes in a tub of sand, the "height of the ball" is this type of variable.
The independent variable (what is changed)
400
Describe two ways a prism can affect the behavior of light.
Prisms can refract light (change the direction) and can also separate white light into a rainbow (the visible color spectrum).
400
What are the energy transformations that occur in an electric toothbrush?
chemical ---> electrical ---> mechanical ---> sound
400
How many lightbulbs will turn on if switch A is closed?
Two lightbulbs will turn on if switch A is closed.
400
At which position did this person add an extra applied force to the ball?
The person added an extra applied force at position 3. I know this because the distance between positions 3 and 4 increases.