This occurs when energy is transfered from one object to another.
What is a change.
100
Energy Changes from _____ to ____ energy when a swing swings back and forth.
What is Potential to Kinetic.
100
The GPE of a 2.0kg ball sitting 26cm above your desk is_____.
What is 19.6J.
100
The KE of a 1.0kg ball traveling a 10 m/s is _____
What is 50J?
200
Energy stored by objects due to their position above the Earth's surface.
What is Gravitaional Potential Energy?
200
This is an example of kinetic energy being tranfered to potential energy.
What is throwing a ball in the air.
200
______ causes the rotors of a car to get hot.
What is friction.
200
The mass of a ball with the GPE of 9.8J and a hieght of 1m is_____.
What is What is 1kg.
200
The mass of a ball traveling at 10 m/s and a KE of 100J is _____.
What is 25kg.
300
Energy a moving object has because of its motion.
What is Kinetic Energy? K.E.= 1/2mv^2
300
The Gravitaional Potential Energy of an object changes when _____.
What is when the hieght or mass is changed.
300
On a cold day you rub your hands together to to make them warm. This converts ______ to ____ to ____ Energy.
What is potential > Kinetic > thermal?
300
If a ball has a GPE of 19.6J and a mass of 2.0kg, its hieght off of the ground is ____.
What is 1M?
300
A ball has a mass of 4.0kg and a KE of 32J, its velocity is _____.
What is 4 m/s?
400
Energy can never be created or destroyed.
What is the Law of Conservation of Energy?
400
Friction causes mechanical energy to be tranformed into ____.
What is thermal energy?
400
When a match is lit, chemical potential energy is transformed into thermal energy. ________ happens to the thermal energy after the match burns out.
What is radiate throughout the room?
400
If a ball had a KE of 100J just before it hit the ground when it was dropped from a hieght of 2m, its mass is ______.
What is 5.1kg?
400
Josh Beckett throws a baseball with a mass of 0.15kg, 97 m/h, miles per hour. This ball has a kinetic energy of _____.
1 mile per hour = .447 meters per second.
What is 286J?
43.68 m/s
500
Energy stored in chemical bonds.
What is Chemical Potential Energy?
500
When I speed up in my car my _______ energy increases.
What is Kinetic Energy?
500
The kinetic energy of a 0.06kg ball traveling at 150m/s is _______.
What is 1,350J?
500
A football is rolled off of your table. When it hits the ground its velocity is _____.
What is ~ 3.8 m/s?
500
A ball is rolled off of a table. If it hits the ground at 25m/s the hieght of the table was ______.