Worksheets4th Grade, Unit 2 - Using Energy
Total questions: 25
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
1. Dolphins communicate using special vibrations and sounds. How is this possible?
a)
Dolphins have very good hearing.
b)
The energy can flow easily through water.
c)
Dolphins make loud sounds only other dolphins can hear.
d)
The energy is transferred from one dolphin to another through sound.
2.
2. Adam and Terry are building an electromagnet, like the one shown in the diagram. They want to test how the battery's stored energy affects the strength of the electromagnet. Which result would the students expect to see in their investigation?
a)
The battery with the higher stored energy will produce more electric current and will strengthen the electromagnet.
b)
The battery with the lower stored energy will produce more electric current and will weaken the electromagnet.
c)
The battery with the higher stored energy will produce less electric current and will weaken the electromagnet.
d)
The battery with the lower stored energy will produce more electric current and will strengthen the electromagnet.
3.
3. Light travels in a _____ path.
a)
curved
b)
straight
c)
random
4.
4. Why are sounds not heard in space?
a)
Space is too cold for sound waves to travel
b)
There is too much matter to travel through in space
c)
Space is a vacuum with few particles to travel through
d)
Energy cannot travel in space.
5.
5. How does sound energy travel?
a)
In strings
b)
In beams
c)
In pulses
d)
In Waves
6.
6. A pom-pom launcher _________.
a)
transfers kinetic energy to thermal energy
b)
transforms kinetic energy to sound energy
c)
transforms stored energy to energy of motion
d)
transfers energy of motion to stored energy
7.
7. When a student plays a guitar, how does the sound travel to reach your ears?
a)
Using echos
b)
Through potential energy
c)
Through thermal energy
d)
Through sound waves
8.
8. ___________ is an excellent thermal conductor because it conducts heat easily.
a)
Wood
b)
Plastic
c)
Aluminum
9.
9. How does heat travel from the Sun to Earth?
a)
conduction
b)
convection
c)
radiation
d)
conduction or convection
10.
10. Which is the best description of how sound waves travel?
a)
in a straight path to your ear
b)
back and forth from the source
c)
outward in all directions
d)
upward from the source
11.
11. How are sound waves and states of matter (solid, liquid, gas) related?
a)
Sound waves cannot travel through any states of matter.
b)
Sound waves can travel through all three states of matter.
c)
Sound waves can travel through solids, but not gasses or liquids.
d)
Sound waves can travel through liquids, but not solids or gasses.
12.
12. A boy, who was at a very loud motorcycle race, said he could feel the motorcycles vibrate his body, even though he was not touching them. How is this possible?
a)
The noise was too loud for the boy.
b)
The boy was sitting very close to the motorcycle.
c)
The energy was transferred to the boy's body through sound.
d)
The motorcycles sent electrical currents through the boy's body.
13.
13. A classroom has a tropical fish tank. The students notice that the tank has a light in it. The teacher says the light is to keep the fish warm. Which sentences best explain how the light keeps the fish warm? Select all that apply.
a)
The light makes it easier to see in the tank.
b)
The light helps keep the tank clean for the fish.
c)
The light's energy provides food for plants in the tank.
d)
The light's energy increases the temperature of the water.
14.
14. Austin and Keion are conducting an experiment on how to strengthen their electromagnet. Currently, the magnet will pick up and hold 7 round pieces of metal. They have conducted a number of tests with different actions and recorded their results. What conclusion can you draw based on the data from their results?
a)
The electromagnet was made stronger by adding loops to the coil.
b)
The electromagnet was made stronger by removing loops from the coil.
c)
44
d)
The electromagnet was made stronger by using a different type of wire.
15.
15. A student made the circuit in the drawing below. What does the student need to add to the circuit to make it work?
a)
another bulb
b)
another battery
c)
a switch
d)
another wire
16.
16. When you eat a slide of pizza, your stomach turns that energy into heat to keep your body warm. What type of energy transfer is this?
a)
kinetic energy to chemical energy
b)
chemical energy to thermal energy
c)
electrical energy to thermal energy
d)
thermal energy to kinetic energy
17.
17. A student is roasting bread in a toaster. Which of the following describes what is happening to the energy?
a)
Some energy is destroyed.
b)
Thermal energy is created.
c)
The electrical energy is transformed to thermal energy in the toaster, which toasts the bread.
d)
The electrical energy is transformed to chemical energy in the toaster, which toasts the bread.
18.
18. That path along which electrical current flows is called a(n) ______________.
a)
sound wave
b)
electrical current
c)
circuit
d)
medium
19.
19. Nora claims that energy can be transferred by an electrical current. She supports her claim by building an electrical circuit. Nora uses two wires to connect a battery to a buzzer, as shown. Which of the following best describes what Nora will observe after building the electric circuit and provides the correct explanation?
a)
Nora hears the buzzer making noise because electric current can travel through the completed circuit.
b)
Nora will not hear the buzzer making noise because the electric current cannot travel through the incomplete circuit.
c)
Nora hears the buzzer making noise because the electric current cannot travel through the incomplete circuit.
d)
Nora will not hear the buzzer making noise because the electric current can travel through the completed circuit.
20.
20. Nora claims that energy can be transferred by an electrical current. She supports her claim by building an electrical circuit. Nora uses two wires to connect a battery to a buzzer, as shown. Which of the following best describes what will happen if Nora removes the wire?
a)
The buzzer will stop making sound.
b)
The buzzer will continue to make sound.
c)
There will be no different after the wire is removed.
21.
21. Lilly learned that fossil fuels contain a lot of energy. Why are fossil fuels considered nonrenewable resources?
a)
Fossil fuels are essential to civilization.
b)
Fossil fuels cannot be replaced fast enough for future use.
c)
Fossil fuels are easily renewed.
d)
Fossil fuels are alternative energy sources.
22.
22. Which of the following are renewable resources? Select two that apply.
a)
oil
b)
hydroelectricity
c)
wind energy
d)
coal
23.
23. A material that formed from ancient organisms and is used today as a source of energy is a(n) ______.
a)
fossil fuel
b)
fissile material
c)
sediment
d)
alternative energy resource
24.
24. Electricity produced from flowing water is called ______
a)
geothermal energy
b)
hydroelectricity
c)
thermal energy
d)
nuclear energy
25.
25. Which of the following must be true about a renewable resource?
a)
The resource is easy to find.
b)
It is expensive to convert to energy.
c)
It replenishes itself in a short period of time.
d)
There are limited amounts of it on Earth.
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