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Types of Energy
Transfer of Energy
Transfer of Energy 2
Scientific Process
Heat Transfer
100
Energy of Motion
What is Kinetic Energy
100

Explain the transformatio that takes place when a skateboarder goes down and up a half-pipe

Potential -> Kinetic -> Potential

100

As the mass of an object moving at a given speed decreases its kinetic energy will ______________________.

What is decrease

100

The variable that is changed by the scientist

What is an Independent Variable

100

Heat flows from _____________ to _____________

Hot to cold

200
The type of Energy that depends on mass and position
What is potential energy
200

Explain the transformation that takes place when you turn on a hairdryer

What is electrical (plug in) to thermal (hot air) and sound

200
As the speed of a falling object increases, its potential energy will _____________________.
What is decrease
200

The variable that is measured

What is dependent variable

200

When you add heat to an objects, how to the molecules behave?

They increase their movement

300

Type of energy that depends on the speed of molecules.

What is thermal or heat energy

300
Explain the transformation of a book falling from table. Explain the type of energy and where it comes from. 3 steps
What is Potential ( due to the position of the book) to kinetic ( motion of the book) to thermal ( the friciton between the book and the air)
300

State the law of conservation of energy

Energy cannot be created or destroyed, it can only change its form

300

We are testing to see if the amount of light a plant gets affects its growth. What would our independent variable and dependent variable be?

Independent: the amount of light the plant gets

Dependent: How tall it grows

300
Explain the process of going from a gas to a liquid to a solid

What is condensation and freezing

400
Type of energy that depends on the flow of electrons
What is electrical energy
400

Explain the transformation of energy when using a car? Start with gasoline

Chemical -> Sound (optional) -> Mechanical & Thermal

400
A basketball is dropped from a height of 2m and another identical basketball is dropped from a height of 4m. Which ball has more kinetic energy just before it hits the ground?
What is The basketball dropped from a height of 4m because it has more speed.
400

A scientist wants to see if adding salt to ice cubes will make them melt faster. He added salt to 20 ice cubes and left the other 20 unsalted. He left the ice out for 1 hour and then reweighed the ice cubes to see how much they melted

What is the control group?

The unsalted ice cubes

400

When you mix 2 liquids of different temperature, will the cooler liquid gain or lose energy

gain

500

Name each type of energy and give and example

What is electromagnetic, thermal, sound, electrical, mechanical, chemical & nuclear energy?
500

Explain the transformation that takes place to use a hand cranking flashlight. Begin with batteries.

What is chemical energy (batteries) to electrical energy (electrical wiring) to kineitc energy (cranking the handle) to electromagnetic (the light) to thermal ( the heat coming off).

500
When you drop a tennis ball, it hits the floor and bounces back up. But, it does not reach the same height as before and each time bounce is smaller than the previous one. However, you notice the tennis ball is slightly warmer after it finishes bouncing. Explain how the law of conservation of energy is obeyed.
What is During each bounce, some of the kinetic energy of the ball in transfered into thermal energy. As a result, energy is not created or destroyed, but only changes form so that the law of conservation of energy is obeyed.
500

Explain the difference between a scientific theory and a scientific law

What is a law describes what will happen in the natural world while a theory explains how or why things happen in the natural world

500

Name each type of heat transfer and provide an example

Conduction, Convection, Radiation