ENERGY
KINETIC ENERGY
POTENTIAL ENERGY
Gravity
True or False
100
The ability to do work or cause change is _____.
ENERGY
100
What factors determine an objects kinetic energy?
a. height and mass
b. mass and speed
c. size and weight
d. speed and height
b. mass and speed
100
Gravitational potential energy depends on which of the following?
a. height and weight
b. mass and speed
c. size and weight
a. height and weight
100
An astronaut way out in space is considered to be “weightless" This is because–
a. his mass is so small relative to the earth that gravity doesn't affect him.
b. gravitational force decreases greatly over long distances.
c. gravitational force pushes objects away from each other at long distances.
b. gravitational force decreases greatly over long distances.
100
True or False: When a car accelerates, its kinetic energy increases
- True.
200
If you wind up a toy car and then let it go, what type of energy does it have when it's wound up?
Potential ENERGY
200
When a ball is thrown upward, where does it have the least kinetic energy?
at its highest point
200
Give an example when the gravitational energy between you and the Earth would be the greatest.
at the top of a hill
at the top of a roller coaster
other possible answers
200
Which of the following claims is supported by the data?
a. Gravitational forces are proportional to the masses of the two objects.
b. Gravitational forces are strongest between objects with identical masses.
c. Gravitational forces are weakest when one object is more massive than the other.
d. Gravitational forces can never exceed an upper limit, regardless of the masses.
A
200
True or False: A ball rolling down a hill has increasing potential energy
false
300
According to the law of conservation of mass/energy, mass/ energy cannot be ________ or ______________.
created
destroyed
300
Kinetic energy is the energy of ________.
motion or movement
300
At which point is the gravitational potential energy at its maximum?
A
300
True or False: Gravity can push objects away from each other.
False
300
True or False: A stretched rubber band has potential energy
true
400
A bicyclist uses brakes to slow down. What stops the bike?
friction or heat energy
400
At which point on the roller coaster is the Kinetic energy the greatest?
X
400
At which point on the roller coaster is the gravitational potential energy the greatest?
W
400
This property of an object helps determine how strongly gravity pulls on it
mass
400
True or False: Temperature is a direct measure of the total thermal energy in a substance
False, temperature measures the average kinetic energy of particles in a substance.
500
What type of energy do batteries store?
chemical potential energy
500
A lion running through the yard is an example of ________________ energy.
kinetic
500
What happens to the car's energy as it moves from point W to X?
the potential energy decreases and the kinetic energy increases
500
This scientist is famous for describing how gravity works between all objects.
Muh boi Sir Isaac Newton
500
True or False:
Wrapping a cold Mt. Dew can in a sweater will cause it to stay colder longer.
True