Show:
Forms of Energy
Electric Charges
How Energy Travels
Light and Heat
How Energy Changes
100
The Sun's energy reaches Earth in these forms.
What are heat energy and light energy?
100
The path that an electric current flows through.
What is an electric circuit?
100
The bottom of the wave.
What is the trough of the wave?
100
The warm object loses heat and the cool object gains heat.
What happens when a warm object comes into contact with a cool object?
100
This happens when chemical energy in a battery is used in an electric toothbrush.
What is chemical energy changing to electric energy and then kinetic energy?
200
This happens when we burn fules such as coal and gasoline.
What is the release of potential energy to do work?
200
This happens when negative charges from your hair meet positive charges of paper.
What happens when you rub a balloon on your hair and then it meets with a piece of paper?
200
This happens when you warm your hands by rubbing them together quickly.
What is friction?
200
The liquid water evaporates and becomes a gas.
What is a way that heat makes liquid water change?
200
When a skier goes from standing at the top of the ski slope to actually skiing down the slope.
What is when energy changes from kinetic to potential?
300
A car moving on the road, a skier going down a slope, and a ball rolling down a ramp.
What are objects that have kinetic energy?
300
This must happen for an electric charge to occur.
What is when a positive and negative charge meet?
300
Energy can be carried by a moving object or travel in waves.
What are two ways that energy travels?
300
Burning
What is a chemical change that gives off light and heat?
300
This happens when gasoline is burned in a car to make the car move.
What is chemical energy into mechanical energy?
400
The Sun as light, chemical energy when burning wood, and electricity in a light bulb.
What are sources of light energy?
400
The path that electricity flows through.
What is an electric circuit?
400
This happens when you eat food and then walk around.
What is when chemical energy turns into motion?
400
When the path of light is blocked.
What causes a shadow?
400
This happens when potential energy changes into energy in motion.
What is kinetic energy?
500
This type of energy is found in batteries.
What is chemical energy?
500
This is an electric charge.
What is an electric current?
500
This happens when a telescope lens makes objects appear larger.
What is refracting light?
500
This happens when energy from the Sun warms the Earth.
What is energy changing from light to heat?