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WorksheetsMatter and Energy 1
Total questions: 45
Worksheet time: 41mins
What is it called when energy is changed into another form?
production
loss
conversion
In a car engine, gas is burned to turn __________ energy into heat and mechanical energy.
nuclear
chemical
electromagnetic
Hydroelectric dams generate electricity by......
converting mechanical energy to electrical
converting chemical energy to potential
converting heat energy to nuclear
converting electromagnetic to chemical
The picture showing the energy conversion
Chemical → heat
is:
The picture showing the energy conversion
Light → chemical
is:
An astronaut on the Moon picks up a stone and throws it hard against another stone. He doesn't hear any sound. Why not?
Human Ears don't work on the moon
Their is no air on the moon and sound cannot travel
Rocks are not as hard on the moon.
The atmosphere on the moon is too cold for sound.
When you are cold, rubbing your hands together very quickly can warm them up. Why does this happen?
Thermal energy is converted to electricity.
Mechanical energy is converted to thermal energy.
Mechanical energy is converted to sound.
Electrical energy is converted to mechanical.
In the lab, Andrew uses a hot plate that is plugged into the wall to heat a beaker of water. The water is heated, which causes the molecules to start moving around. Choose the response that lists the 3 types of energy being converted in the proper order.
Electrical, thermal, mechanical
Light, mechanical, thermal
Thermal, electrical, mechanical
Electrical, mechanical, thermal
Making electricity requires many energy conversions. A fuel (coal, natural gas, nuclear power, oil, wood) provides chemical energy. Fuels are burned to heat a boiler that turns water into high-pressure steam. The steam spins a turbine. The turbine spins a generator. The generator makes electricity. Choose the energy conversions taking place in their proper order.
Chemical, thermal, mechanical, electrical
Electrical, chemical, mechanical, thermal
Electrical, mechanical, thermal, chemical
Chemical, mechanical, thermal, electrical
If you tighten the string on a guitar and pluck it, the —
The pitch gets higher
The pitch gets lower
The sound gets louder
The sound gets quieter
Which two objects use electrical energy to move an object?
A fan and pencil sharpener
A radio and stove
A lamp and television
A camera and an Mp3 player
The teacher opened a window in the classroom to cool down the room. Which of these activities uses the same type of energy that the teacher used to open the window?
playing drums using mechanical energy
burning wood using thermal energy
lighting lightbulbs using electrical energy
talking to someone using sound energy
Which of these use chemical energy to move
An electric car
A phone
A car running on gasoline
A fan blowing in the wind
Which of these is using mechanical energy to create thermal energy
A person spinning around
A person rubbing his/her hands.
A dog barking
A cat meowing
Connor plugged in is headset to listen to some music . Which of these is showing the proper conversion of energy in order?
Sound to mechanical
Thermal to chemical
Electrical to thermal
Electrical to sound
What is stored energy due to position above the ground?
kinetic energy
potential energy
thermal energy
nuclear energy
What is energy due to motion?
kinetic energy
potential energy
thermal energy
nuclear energy
What is the sum of kinetic energy and potential energy of a system?
mechanical energy
electrical energy
moving energy
nuclear energy
Where does the pendulum have the greatest kinetic energy?
A
B
C
D
E
Where does the pendulum have the least amount of potential energy?
A
B
C
D
E
Where does the pendulum have the greatest potential energy? (pick 2)
A
B
C
D
E
Where does the pendulum stop moving for just a split second so that it's kinetic energy is zero? (pick 2)
A
B
C
D
E
Where does the pendulum have the same amount of kinetic energy and potential energy? (pick 2)
A
B
C
D
E
Where is potential energy at its maximum?
a
b
c
d
Where is kinetic energy at its maximum?
a
b
c
d
Where is potential energy changing to kinetic energy?
a
b
c
d
What is the kinetic energy at W, where the car is stopped?
0J
10,000J
20,000J
can not be determined
What is the mechanical energy of the system? (ignore friction)
0J
10,000J
20,000J
can not be determined
What is the kinetic energy at position X? (ignore friction)
0J
1,000J
19,000J
can not be determined
What is the kinetic energy at position Y? (ignore friction)
0J
10,000J
20,000J
can not be determined
Kinetic energy depends on
mass and height
height and speed
mass and speed
mass and force
What is stored energy due to position above the ground?
kinetic energy
potential energy
thermal energy
nuclear energy
Energy stored in a flexed, strecthed, or compressed object
gravitational potential energy
mechanical energy
kinetic energy
elastic potential energy
The process by which people walk
requires only a little energy.
is powered by the body’s surplus heat energy.
relies on the conversion of chemical energy from food into mechanical energy by muscles.
relies on the creation of mechanical energy by muscles, which is transferred into heat energy.
The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?
mechanical to heat
sound to mechanical
potential to kinetic
kinetic to potential
