Types of Energy
Give 2 examples of mechanical energy.
Running in a field, pedaling on a bike...
Explain how you know faster objects have more energy than slower objects.
If you push a marble softly, you will see that it goes a shorter distance than if you pushed a marble with more force.
A ball sitting on top of a hill.
Potential energy
What type of energy is ice cream melting an example of?
Thermal energy.
Give one example of energy transferring from one object to another.
If you touch a hot plate, your hand will burn.
Releasing a bow and arrow.
Kinetic energy.
What is one example of energy changing from one form to another?
When a light bulb lights- electrical energy changes into thermal energy which produces light.
What two types of energy does the sun have?
Thermal and electromagnetic.
Explain when a rollercoaster has the most potential energy.
At its highest point.
Give 2 examples of kinetic and potential energy.
Explain the difference between a car with a larger mass that crashes compared to a car with a smaller mass.
The car with the larger mass will have a bigger impact because it was moving faster and had more energy.
When a moving object slows down or stops, what happens to its kinetic energy?
It may change to a different form such as heat energy from friction.
Give 3 examples of electromagnetic energy.
Microwave, television, x-rays
Give an example of how technology has improved to make cars safer.
They developed crumple zones in the front and the back to absorb energy.
Give an example of an object changing from kinetic to potential energy and back to kinetic.
A pendulum swinging has kinetic energy, then when it swings up the other side, it turns to potential, and turns back to kinetic when swinging back down.