Do you think the air is matter?

We meassure mass in...

We have a metal ball and a plasticine ball with the same volume. Which ball do you think has more mass?

Forces can change...

Which of the following is NOT a state of matter?

We measure______________in grams.

Which unit can we use to measure volume?

What is volume?

True or false? Gases have a definite shape and a definite volume.

This state of matter does not have a definite shape, but it does have a definite volume.

____________ have a definite shape and a definite volume.

Forces that act from a distance and do not make physical contact are called...............

True or false? Contact forces act through physical contact.

What are the two non-contact forces we have studied in this unit?

Which force attracts all objects towards each other?

What is magnetism?

Which contact force exists when two objects rub against each other?

Which material will return to its original shape when the force stops?

Which material is strong, light, long-lasting and very cheap to manufacture? Hint: cars contain a lot of this material.