Energy Vocabulary
KE and PE
Model Analysis
Solve the problem
Miscellaneous
100
Mass and Velocity are the variables for what type of energy
Kinetic energy
100
All energy can be divided into two main forms, ________ energy and ___________ energy
kinetic and potential
100
As the object moves from point A to point D across the surface, the objects total amount of energy __________.
Remains the same.
100
What is the equation for GPE?
Mass x gravity x height
100
What is the magnitude of a measurement
the number or the amount with the appropriate units
200
What is the unit of measure for energy
Joules
200
The energy that an object has because of its position is best described as
Potential energy
200
The object will have the lowest gravitational potential energy at point B or C?
B
200
What is the equation for kinetic energy?
1/2 x mass x velocity2
200
Velocity, momentum, and displacement are all considered vectors. What does this mean?
They all include a magnitude and direction.
300
What is the ability to do work?
energy
300
The energy an object has because of its motion
kinetic energy
300
The object's potential energy at point C is less than its potential energy at point D. True or false?
True
300
There is a bell at the top of a tower that is 45 m high. It weighs 109 kg. How much energy does it have? Be sure to give the units.
48,069 Joules
300
How do you calculate speed?
Distance/time
400
Mechanical energy can best be described as
The sum of potential and kinetic energy
400
What happens to an objects kinetic energy if you increase the mass or velocity of the object?
The amount of kinetic energy increases
400
At what point is the kinetic energy is the greatest?
3
400
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. How much energy does it have? Be sure to give the units.
945 J
400
What are the two variables that effect momentum
Mass and velocity of an object
500
What law is best described by "Energy can neither be created nor destroyed. Instead, all forms of energy can be converted or transformed into other forms."
Law of conversation of Energy
500
What happens to the gravitational potential energy of an object as you increase its height?
GPE increases as height increases
500
Where is the velocity of the object the least?
1 and 5
500
A cinder block is sitting on a platform 20 m high. It weighs 79 kg. How much energy does it have?
15,484 J
500
If you wanted to change the amount of force an object experiences what would you change in terms of Newton's 2nd law of motion
decrease the acceleration.