Kinetic energy is the energy of motion or energy in use.
100
What are two other types of kinetic energy?
Thermal energy and electric energy.
100
What is potential energy?
Potential energy is the energy an object has because of where it is or because of its condition.
200
At what point in the process does the pole vaulter have his greatest kinetic energy?
As he lifts himself towards the bar.
200
Where does most of the earth's energy come from?
From the sun.
200
True or false?Potential energy is the energy in motion or the energy in use.
False.
300
What does any mattter in motion have?
Kinetic energy
300
What are two other types of potential energy?
Gravitational potential energy and Elastic potential energy.
300
True or false? When you let go of a tennis ball it gained energy as it moved slower and slower toward the floor.
False, because it should be faster and faster, instead of slower and slower.
400
When is the potential energy of food changed into kinetic energy?
By the pole vaulters muscles as he runs towards the bar.
400
You use mechanical energy to walk around. What form of energy did this energy have before your body changed it to mechanical energy?
Kinetic energy
400
If you toss a ball in the air at what point does it have the most potential energy?
As it moves faster and faster towards the ground.
500
When the pole vaulter sticks his pole in the ground, much of his kinetic energy is changed to potential energy. Why?
The bent pole.
500
What are the differences between kinetic energy and potential energy?
They are different because Kinetic energy is the energy of motion,and potential energy is the energy an object has because of where it is or because of its condition.
500
If you caught a ball at the top of a bounce when would it lose its potential energy?