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Definitions
Calculating PE
Calculating KE
Units
Random
100
The amount of matter in an object
What is mass?
100
Formulas for calculating PE? Give both
What is PE = m x g x h and PE = F x h
100

Which has more Kinetic Energy, a 20 kg ball moving at 3 m/s or 5 m/s?

What is 5 m/s?

100
In calculating PE problems, the unit used for height?
What is a meter?
100
Energy is?
What is the ability to do work?
200
How fast an object is traveling in a certain direction.
What is velocity?
200
Calculate the PE of a rock that has a mass of 60 kg and is 10 m high.
What is 5880 J
200
Determine the kinetic energy in a 7 kg ball thrown with a velocity of 21 m/s.
What is 1543.5 Joules?
200
In calculting PE and KE problems- the unit used for mass?
What is Kilogram?
200
Variable with most impact on KE and why
What is velocity because it is squared?
300
The difference between kinetic energy and potential energy?
What is Kinetic energy is motion and Potential energy is stored energy due to it's position (height).
300
How much potential energy would a 3 kg table have if it's at the top of a hill 117 m high?
What is 3439.8 J
300
The computer weighs 3 kg and is thrown at a velocity of 5 m/s. Calculate the Kinetic energy.
What is 37.5 Joules?
300
In calculating KE problems, the unit used for velocity
What is m/s?
300
List 3 forms of potential energy
What are gravitational, chemical, stored mechanical, nuclear?
400
The force that pulls us towards the ground. 9.8 m/s2
What is gravity?
400
Which has more potential energy, a calculator on the ground or a calculator on the table 1.5 m high?
What is on the table. (greater height)
400
Calculate the kinetic energy of a 15 kg cart going 60 m/s.
What is 27,000 J?
400
Unit is used for PE and KE
What are Joules (or newton meter)?
400
List 3 forms of kinetic energy.
What is motion (mechanical), heat (thermal), sound, light (radiant), electrical?
500
Definition for height and how is it measured scientifically?
How high, or tall something is, measured in meters.
500
Why might there be (slightly) more Potential Energy at the top of a rollercoaster than the total amount of energy at the very end of the ride?
What is some energy is converted to friction, heat, and sound energy?
500
Susie's pencil weighs 0.05 kg and is dropped from the table 1 m high. The pencil falls at a velocity of 9.8 m/s. What is the pencil's PE?
What is 2.401 J?
500
Two ways to write the unit for energy (name and units for each one)
What are- Joules = Kg x m2/s2 and Newton meter = kg x m/s2 xm
500
State the law of conservation of energy
What is energy cannot be created nor destroyed, only changed in form.