Magnets & Poles
Magnets have two ends called ______.
A. charges
B. poles
C. forces
D. sides
B. poles
Do magnets attract all metals or only some metals?
A. All metals
B. Only some metals
C. No metals
D. Only plastic
B. Only some metals
A push or pull is called a ______.
A. motion
B. force
C. magnet
D. charge
B. force
What is a natural example of electricity?
A. wind
B. rain
C. lightning
D. clouds
C. lightning
Electric charges can be positive or ______
A. strong
B. negative
C. heavy
D. light
B. negative
Opposite poles do what?
A. repel
B. disappear
C. attract
D. stop
C. attract
Will a magnet pick up an iron nail?
A. Yes
B. No
C. Only sometimes
D. Only if it is big
A. Yes
Can magnets move objects without touching them?
A. Yes
B. No
C. Only sometimes
D. Only large objects
A. Yes
Why do clothes stick together in the dryer?
A. water
B. heat
C. static electricity
D. gravity
C. static electricity
Opposite charges push or pull?
A. push
B. pull
C. stop
D. disappear
B. pull
Same poles do what?
A. attract
B. repel
C. melt
D. spin
B. repel
Why did the magnet pull the nail but not the copper coin?
A. The nail is smaller
B. The coin is heavier
C. Some metals are magnetic, others are not
D. Coins cannot move
C. Some metals (like iron) are magnetic, but others are not
A nail moves toward a magnet before touching it. What does this show?
A. Magnets are heavy
B. Magnets are invisible
C. Magnetic force works at a distance
D. The nail is broken
C. Magnetic force works at a distance
Why do packing peanuts stick to a sweater?
A. heat
B. gravity
C. opposite charges attract
D. air pressure
C. opposite charges attract
Same charges push or pull?
A. pull
B. push
C. melt
D. stop
B. push
Two magnets move away from each other. What is true?
A. They are broken
B. They are different sizes
C. They have opposite poles
D. They have the same poles
D. They have the same poles
Which part of a pencil would a magnet stick to?
A. Wood
B. Eraser
C. Metal band
D. Graphite
C. Metal band
Why can’t we see magnetism?
A. It is too fast
B. It is too small
C. It is invisible
D. It is not real
C. It is invisible
What happens when positively charged hairs are near each other?
A. They attract
B. They repel
C. They disappear
D. They break
B. They repel
Which example shows electric charges causing motion?
A. A book sitting still
B. A balloon attracting paper
C. A pencil on a desk
D. A chair not moving
B. A balloon attracting paper
One magnet pulls objects from farther away than another. What does that mean?
A. It is weaker
B. It is stronger
C. It is smaller
D. It is broken
B. It is stronger
Why won’t a magnet stick to wood or rubber?
A. They are too big
B. They are too light
C. They are not magnetic materials
D. They are too soft
C. They are not magnetic materials
Which is an example of a force causing motion?
A. A rock sitting still
B. A magnet pulling a nail
C. A book on a table
D. A pencil not moving
B. A magnet pulling a nail
Why is it important to learn about electricity and charges?
A. To make toys
B. To explain how things move in the world
C. To stop lightning
D. To make magnets
B. To explain how things move in the world
Why do scientists study electric charges?
A. To make games
B. To understand how things move and interact
C. To stop electricity
D. To make objects heavier
B. To understand how things move and interact