PTS Practice: Forces and Magnets - Jack Vickers | Biblioteka

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Mia tests if red cars roll faster than blue cars. She uses a big red car and a small blue car. Why is this not a fair test?

The cars are different colours.

The cars are different sizes.

The ramp is sloped.

She used two cars.

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The push does not change the distance.

A smaller push moves it further.

A bigger push moves the trolley further.

The trolley always stops in the same place.

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the sand is smoother

the sand is rougher than the others

the sand is colder

the sand is lighter

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A: a steel paperclip

B: a rubber band

C: a pencil

D: a glass marble

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because magnets are heavy

because a magnetic force can act without touching

because the table is slippery

because magnets are made of metal

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	True	False
Both magnets have a north pole and a south pole.
The ends of a magnet, where the pull is strongest, are its poles.
Two north poles pushed together will pull towards each other.
A north pole and a south pole will pull towards each other.

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poles

sides

corners

edges