Force unit review

Force can change the ____ of an object

• color

• texture

• size

• motion

What is NOT an example of applying force?

• jumping

• hitting

• resting

• kicking

All force is either a push or a pull on an object. Which is a pull?

• laying an object down

• moving an object away

• not touching an object

• moving an object towards you.

When one force is stronger than another force, we call that

• balanced forces

• gravity

• friction

• unbalanced forces

in an experiment, a ______ is something that changes

• investigation

• tool

• variable

• question

A magnet could be attracted to which of the following:

• a paperclip

• a piece of paper

• a piece of bread

• a crayon

A real life use of a magnet might be:

• a cabinet door

• a playground swing

• a bottle

• a book

Magnets have two sides: a north pole and south pole. If you put the north and south poles together, they _______ each other.

• attract

• repel

You can make a ball go faster down a ramp by doing which of the following:

• reduce the friction of the slide by making it smoother

• increase the height of the ramp

• give the ball a push

• all of the above

Why was the suspension bridge a good design for connecting San Francisco and Sausalito?

• The water was too deep for a pillar bridge.

• The bridge couldn't have a lot of supports because big ships had to get through.

• the length was too long for an arch bridge.

• all of the above.