Kinetic Energy
Units for Energy
What is Joules (J)?
Potential energy is ___________ energy.
Stored or positional
What is energy?
power or the ability to do work
What is the unit for velocity?
m/s
Where is Danielle from?
Grimsby
Kinetic energy is __________ energy
What is moving?
In a waterfall, potential energy is transferred to _____________.
Kinetic Energy
What is this sentence describing: this energy is due to the stretching of a rubber band or the compression of springs.
What is the unit for energy?
Joules (J)
How many siblings do I have?
2
one brother, one sister
What is the formula for kinetic energy?
KE= 1/2mv2
What are the two equations for potential energy?
PE = mgh
PE = Wh
What is this sentence describing: the energy stored in chemical bonds
Chemical Energy
What is the potential energy of a 3 kg crate 7 meters about the ground?
205.8J
What are my siblings names?
Patrick and Sarah
A basketball with a mass of 0.20kg is travelling through the air at a velocity of 15 m/s. What is the kinetic energy of the ball?
22.5 Joules
What is the type of potential energy involved in an egg falling off a roof?
Gravitational potential energy
Fill in the blank AND say what the name of this law is:
Energy cannot be destroyed or created, it can only be _____________ from one form to another.
Transformed
Law of Conservation of Energy
What is the kinetic energy of a 75kg person running on a track with a velocity og 3.5 m/s?
459.375J
What is the name of one of the most important things to me?
Vivo - my cat
What is the mass of a car moving with a velocity of 30 m/s and an energy of 81 000J?
180 kg
You are floating in your space suit about 1000m from the moon's surface and your mass is 61kg. What is your potential energy? (Gravity on the moon is 1.6 m/s2).
97600J
A rollar coaster starts out with 503J of energy. Near the top of a hill, it has 4 J of one type of energy. Which type of energy is this? And how much of the other type does it have?
4 J of kinetic energy
499 J of potential energy
A car rolling down a hill has a kinetic energy of 78000J. It is rolling with a speed of 6m/s. What is the mass of the car?
161.24J
A cart is traveling along a frictionless rollar coaster track. At point A the cart is 10 m above the ground and has a spped of 2 m/s.
What is the velocity when the cart reaches the ground?
14.1m/s