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- 1. Multiple Choice
True or False: heat transfers to cold and cold transfers to heat
True
False
- 2. Multiple Choice
True or False: heat transfers to cold, but cold does not transfer to heat
True
False
- 3. Multiple Choice
What does a heat conductor do?
Slows down the rate of heat transfer
Speeds up the rate of heat transfer
The flow of heat transfer
Controls heat
- 4. Multiple Choice
What does a heat insulator do?
Slows down the rate of heat transfer
Speeds up the rate of heat transfer
Stops noise from coming through
Completes an electrical circuit
- 5. Multiple Choice
What happens when heat transfers through radiation?
Two objects are touching
Electromagnetic waves (like sunlight) transfer heat
Cold fluids are dense and sink, pushing warmer fluids up
- 6. Multiple Choice
The smallest particles of matter are called ____________.
Neutrons
Electrons
Protons
Atoms
- 7. Multiple Choice
The path along which electricity travels.
Fuse
Electric current
Electric Discharge
Insulator
- 8. Multiple Choice
Which of these in an insulator?
A copper wire
A silver spoon
A rubber coating on a wire
An aluminum coating on a wire
- 9. Multiple Choice
Electrical current cannot flow through _____________.
A closed circuit.
An open circuit.
Electrical current
Magnetic poles
- 10. Multiple Choice
In which of the following materials do charges to flow more easily?
Glass
Bamboo
Metal wires
Rubber mats
- 11. Multiple Choice
Static electricity is an electric charge caused by friction that can build up on a material or surface. One example of static electricity is:
Solar power
Magnetism
Lightning
- 12. Multiple ChoiceWhat will happen when a balloon with a negative charge touches a wall with a positive charge?The balloon will bounce off the wall.The balloon will explode.The balloon will stick to the wall.The balloon will become positively charged.
- 13. Multiple ChoiceWhich diagram below shows a closed circuit?FGHJ
- 14. Multiple Choice
When two magnets repel, they _________.
Change color
Pull together
Push apart
Get colder
- 15. Multiple Choice
When two magnets attract, they ________.
Push apart
Change color
Get colder
Pull together
- 16. Multiple ChoiceWhich diagram shows magnets that attract each other?ABCD
- 17. Multiple Choice
A magnet cannot not move which of the following objects?
Paper clip
Nail
Toothpick
Staple
- 18. Multiple ChoiceWhich diagram shows magnets that will repel each other?FGHJ
- 19. Multiple ChoiceWhat will happen when these magnets are brought close together?They will attract each other.They will repel each other.Both magnets will turn to the leftBoth magnets will turn to the right
- 20. Multiple Choice
Four items are placed the same distance from the magnet. Which one of the objects will be the easiest for the magnet to pull?
Eraser
Iron nail
Aluminum can
Piece of paper
- 21. Multiple ChoiceWhy does a compass needle point north?The compass is a bar magnetBecause north is upBecause it's magicIt lines up with the Earth's magnetic field
- 22. Multiple Choice
The strongest part of a magnet is ______.
The bars
The outer magnetic field
The poles
The middle
- 23. Multiple Choice
What is Geomagnetism?
Lightning storms
Really strong magnets
When magnets repel
Earth's magnetism
- 24. Multiple Choice
Where is the geomagnetic force the strongest?
A
B
C
D
- 25. Multiple Choice
Aurora Borealis, or polar lights, occur when Solar Winds reach the Earth's magnetic field. Where will the charged particles become visible?
A
B
C
D
- Answer choicesTagsAnswer choicesTags