Potential Energy
Potential energy depends on gravitation potential (9.8 N/kg), mass, and what other variable?
Height
How much work is done on a box that is moved 4 meters by a person exerting a force of 8 N?
32 Joules
What type of energy transfer is it: Food being eaten
Chemical -> Mechanical
Which letter is pointing to a spot on the graph that represents no movement.
B
Energy in motion is _____________ energy.
Kinetic
What is the potential energy of a 2 kg rock being held above a 50 meter tall cliff?
980 J
A box is pulled 7 meters across a floor. 56 J of work was done. What force was the box pulled with?
8 N
What type of energy transfer is it: Photosynthesis
Light -> Chemical
DAILY DOUBLE: Which letter is pointing to a spot on the graph that represents constant movement toward the objects original position
C
The measure of energy transfer that occurs when an object is moved by an external force
Work
Coal is an example of which type of potential energy?
Chemical
What is the kinetic energy of a ball that has a mass of 1 kg and a velocity of 8 m/s?
32 J
What type of energy transfer is it: A light bulb (two energy outcomes)
Which point on the graph is showing constant positive acceleration.
A
Energy produced from vibrations that travel in the form of waves
Sound Energy
What is the mass of an object that is 70 meters above the ground and has a potential energy of 8,232 J?
12 kg
What is the kinetic energy of a bowling ball that has a mass of 5 kg and a velocity of 2 m/s?
10 J
What type of energy transfer is it: A nuclear power plant powering a home (two energy outcomes)
Nuclear -> Heat / Electrical
Which point on the graph is showing constant velocity.
B
Energy stored in the molecular bonds of substances
Chemical Energy
The potential energy of a spring depends on the ___________ of the spring.
extension / change in distance
What is the kinetic energy of a cannon ball that has a mass of 100 kg and a velocity of 42 m/s?
88,200 J
What type of energy is it? A battery running a robot (two energy outcomes)
Chemical -> Mechanical and Electrical
What does a curved line on a distance-time graphin indicate?
Acceleration
Nuclear Fusion