11 questions
Choose the answer that has the most ELASTIC POTENTIAL energy.
a rubber band pulled back all the way
a rubber band pulled back part of the way
a rubber band laying on a table
Choose the answer that has the most GRAVITATIONAL POTENTIAL energy.
a 500 kg boulder on a 5 meter hill
a 500 kg boulder on a 10 meter hill
a 500 kg boulder on a 20 meter hill
Choose the answer that has the most GRAVITATIONAL POTENTIAL energy
a bird flying 7 kmph 3 meters off the ground
a bird flying 7 kmph 6 meters off the ground
a bird flying 10 kmph 3 meters off the ground
Choose the answer that has the most GRAVITATIONAL POTENTIAL energy.
a car going 10 kmph on top of a mountain
a car going 15 kmph on the 3rd floor of a parking garage
a car going 20 kmph on an interstate ramp
What two factors affect GRAVITATIONAL POTENTIAL energy?
mass
height
speed
mass and speed
mass and height
What two factors affect kinetic energy?
mass
speed
height
mass and speed
mass and height
When figuring GRAVITATIONAL POTENTIAL energy, what matters more?
speed
height
amount of fur
Which has more GRAVITATIONAL POTENTIAL energy and WHY? (Choose the BEST explanation!)
A roller coaster car at the top of a hill
OR
a roller coaster car at the bottom of the hill.
The car at the top because it is not moving, so it has more potential energy.
The car at the top because it is higher off the ground, so it has more GPE.
The car at the bottom because it is going faster.
The car at the bottom because it can't go any lower.
Which has more KINETIC energy and WHY? (Choose the BEST explanation!)
A roller coaster car at the top of a hill
OR
a roller coaster car at the bottom of the hill.
The car at the top because it is not moving, so it has more potential energy.
The car at the top because it is higher off the ground, so it has more GPE.
The car at the bottom because it is going faster.
The car at the bottom because it can't go any lower.
What is the mechanical energy of a system?
just potential energy
just kinetic energy
the sum of the potential and kinetic energy
kinetic energy minus potential energy
A plane flying above the ground has what energy?
Only GPE because it is high
Only KE because it is moving
GPE and KE because it is off the ground and moving