Magnets
Vocabulary
Balanced and Unbalanced Forces
Random
100
Is magnetic force a touching or non-touching force?
Non-touching
100
A scientific word for a pulling magnetic force pulling toward.
Attract
100
What is the resistance to motion of one object moving relative to another?
Friction
100
Tow and yank are both examples of what force, push or pull?
Pull
200
Magnets are attracted to what element?
Iron
200
A scientific word when a magnet is pushing another magnet away.
Repel
200
Why do sandpaper sliders go slower than other materials?
Because sandpaper creates a lot of friction.
200
Press, throw, stomp are all example of push or pull forces?
Push
300
True or False: Magnets can repel or attract other magnets?
True
300
A type of non-touching force that can act between magnets and some, but not all, other objects
Magnetic force
300
This bridge in San Frisco needed to be build as a suspension bridge to allow ships to fit underneath.
Golden Gate Bridge
300
Give one example of how you could make yourself go faster down a slide.
Examples vary
Main idea is a suggestion eluding to less friction
400
Are paperclips magnets? Why or why not?
Paper clips are not magnets but they can become magnetized by coming in contact with magnets. The paper clips that are touching magnets can pick up other things made of iron and will stay magnetized for a short time after the magnet is removed.
400
What is evidence that a force has acted on an object?
When an object starts moving or stops moving
400
Why did it take so many rubber bands to cause the watermelon to explode?
Because the rubber bands needed to create a force greater than the watermelon rind.
400
What happens when you try to put two of the same poles (north/negative, south/positive) of a magnet together?
They will repel each other
500
What are two properties of a magnet?
Attract and repel
500
What word means the action or process of moving or being moved?
Motion
500
Why is it hard to win tug-o-war against a bunch of adults?
The adults have a lot of friction.
500
Why are pillar and arch bridges used?
Why are pillar and arch bridges used?
The force of people and cars pushes down on bridges. The pillars and arches push up from below to balance the downward push force from the people and cars. The board bridge does not have anything to provide the push from underneath