ENERGY
KINETIC ENERGY
POTENTIAL ENERGY
Thermal Energy and Heat
Energy and Things...
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
The transfer of energy from a warmer object to a cooler object through direct contact
conduction
100
Energy in a flashlight's battery changes from __________ energy to electrical energy?
chemical
200
________ is a property of matter
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
Energy from the sun travels to Earth through
Radiation
200
Which type of energy is released when a firecracker explodes?
a. chemical c. electric
b. elastic d. nuclear
a. chemical
300
According to the law of conservation of energy, energy ________ be ________ or ______________.
cannot
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
A group of cows are grazing in a pasture. As they eat, the cows break down molecules in the grass, which releases energy. Which form of energy is stored in the pasture/grass?
chemical
400
A bicyclist uses brakes to slow down. What stops the bike?
friction
400
Inside the sun, hydrogen atoms combine to form helium atoms. This process release light and warmth. Which form of energy powers the sun?
Nuclear
400
At which point on the roller coaster is the gravitational potential energy the greatest?
W
400
energy stored in the bonds of atoms
chemical
400
What form of energy does lightning produce?
light energy
500
Four different brands of batteries each store 5.5 kJ of energy. The table below shows how much electrical energy each battery releases.
Based on the evidence, which battery is the most efficient?
D
500
A lion running through the yard is an example of ________________ energy.
mechanical
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
The energy transferred from an object at a higher temperature to an object at a lower temperature.
heat
500
Ms. Jennifer is a cool chemist whipping up two solutions together. An amazing chemical reaction takes place, and the solution becomes warm. What happened?
Energy has been transformed from one form to another.