Vocab
Energy of motion.
What is Kinetic Energy?
kg
what is mass
What is the kinetic energy of a 10kg car that is moving at 4 m/s.
KE= 80 J
There is a box at the top of a hill that is 10 m high and the box has a mass of 20kg. What is the potential energy of the box? (g=9.8)
PE= 1,960 J
Energy stored in an object based of its position.
What is Potential Energy?
m/s
What is velocity
A cat has 400 J of kinetic energy and moves at 10 m/s. What is the mass of the cat?
8kg = m
A 30 kg child climbs 15 meters up a tree. When he stops to have a look around, what is the child's potential energy?
PE= 4,410 J
type of energy whos formula mgh (mass X gravity X height)
What is potential energy?
joules
What is energy
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the balls kinetic energy.
KE= 945 J
A full sized glider has a mass of 490 kg, while its pilot weights 82.5kg. If its 1,000 meters off the ground, how much potential energy do the plane and pilot have?
PE= 5,610,500 J
Process where energy is moved from one store to another.
What is energy transfer?
Gravity is always.
what is 9.8 m/s?
A model glider has has a mass of 1 kg and a velocity of 2.2 m/s. How much kinetic energy does it have?
KE= 2.42 J
There is a 10 kg box at the top of a tower that is storing 490 joules of energy. What is the height of the tower? (g=9.8)
5m =h
The kinetic energy formula.
What is KE=1/2 m X v^2
m/s^2
what is gravity
What is the velocity of a 500 kg elevator that has 4,000 J of energy?
4 m/s = V
The potential energy of a box is 1960 joules. The box is 20 m high. What is the mass of the box? (g=9.8)
10kg =m