Kinetic Energy
the energy of motion
What is Kinetic Energy?
What is the unit for measuring energy?
Joules
What kind of energy does food have?
Chemical
At the bottom of a rollercoaster hill, what type of energy does the car have?
kinetic energy
True or false: Potential energy is movement energy? If false tell us what type of energy it really is.
What is False and kinetic energy?
Tell us the definition of gravitational potential energy.
What is potential energy caused by position of an object above Earth's surface.
On top of a roller coaster, which energy do you have?
What is gravitational potential energy?
If a ball is standing still at the top of a hill it has....
What is gravitational potential energy?
Explain an example of how chemical energy can turn into light energy.
Many examples
A skiier is at the top of a mountain - what type of energy does the skiier have?
Gravitational potential energy
Name the types of potential energy.
What is elastic potential energy and gravitational potential energy?
Essay: Use the example of a child dropping a ball to discuss potential and kinetic energy.
varies
Draw a roller coaster and label the following things:
1. Most KE
2. Least KE
3. Most PE
4. Least PE
5. Equal PE/KE
varies
What type of energy does a trampoline have when you are standing on it?
What is elastic potential energy?
What factors would give an object MORE potential energy
More height, more mass
If a ball is rolling at 8 meters per second and it is 4 kg. What is the Kinetic energy?
What is KE= 128J
How do you calculate gravitational potential energy?
What is GPE= mass x gravity x height = mgh
Use the example of a roller coaster to explain the law of conservation of energy. Think about these questions...
Is energy ever lost?
Does the amount of energy ever change?
How are the levels of potential and kinetic energy related?
Answers vary
Two shopping carts are loose in a parking lot. One cart has lots of food in it, so it has a lot of mass. The other cart is empty. The parking lot is on a slight hill, so both carts are moving down the hill towards a parked car. They may cause a dent in the car when they hit it.
What additional information do you need to know to figure out how much kinetic energy each cart will have when they hit the parked car?
Calculate for the potential energy of an object given the information below:
height: 2 m
gravity: 9.8 m/s^2
mass: 5kg
98 J