Kinetic and Potential Energy
Energy Forms
Law of Energy Conservation
Energy Transformations
100
Stored energy
Potential
100
Energy that is associated with charged particles
Electrical energy
100
Energy conservation states that energy cannot be ______ or _______
Created or destroyed
100
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
a. mechanical energy to chemical energy
b. mechanical energy to thermal energy
c. chemical energy to mechanical energy
d. thermal energy to mechanical energy
c. chemical energy to mechanical energy
200
Moving energy
Kinetic
200
Energy that produces heat
Thermal energy
200
Energy cannot be created or destroyed, but it can be _____ from object to object
Transferred
200
What is the energy transformation that occurs in an electric pencil sharpener?
a. mechanical energy to electrical energy
b. electrical energy to mechanical energy
c. radiant energy to sound energy
d. chemical energy to mechanical energy
b. electrical energy to mechanical energy
300
Increases the further you are from the ground
Potential
300
Energy that changes the position of an object from one place to the next
Mechanical energy
300
If you throw a boomerang using 100 Joules, how many Joules should you have when the boomerang returns
100 Joules
300
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a. chemical to light
b. electrical to light
c. electrical to chemical
d. chemical to electric
b. electrical to light
400
Increases the faster that you go
Kinetic
400
Energy that you see
Light energy
400
You drop a basketball out of a second story window, and the basketball bounces back to the first window. What best explains why the basketball only reached the first window?
a. Energy was lost when falling from the window
b. Energy was gained when hitting the ground
c. Energy was transferred to the basketball when it hit the ground
d. Energy was transferred to the ground when the basketball hit it
d. Energy was transferred to the ground when the basketball hit it
400
A hairdryer converts ___________ to ________
a. electrical energy to chemical energy
b. electrical energy to thermal energy
c. electrical energy to gravitational energy
d. electrical energy to potential energy
b. electrical energy to thermal energy
500
The roller coaster cart has the most kinetic energy at which position?
W
X
Y
Z
X
500
Energy stored within food and the chemical bonds of things
Chemical energy
500
As the cars of a rollercoaster race down a hill, energy transformations take place. Which of the following is true?
a. The total amount of energy changes
b. The potential energy increases
c. The potential energy and the kinetic energy decrease
d. The total amount of energy stays the same
d. The total amount of energy stays the same
500
When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?
a. thermal energy to mechanical energy
b. thermal energy to chemical energy to mechanical energy
c. chemical energy to thermal energy to mechanical energy
d. chemical energy to electrical energy
c. chemical energy to thermal energy to mechanical energy