Forces and speed

Question 1

What is a force?

Answer 1

A push or a pull

Question 2

What force slows you down when you’re running?

Answer 2

Air resistance

Question 3

What force pulls me toward the ground?

Answer 3

Gravity

Question 4

What force keeps things afloat?

Answer 4

Upthrust

Question 5

What force acts against moving objects by rubbing?

Answer 5

Friction

Question 6

What equation do we use to find out the weight of an object?

Answer 6

Weight= mass x gravitational field.

Question 7

How do we calculate time taken to get to a place?

Answer 7

Distance/speed

Question 8

What equation calculates density?

Answer 8

Mass/volume

Question 9

Speed= ____ x_____

Answer 9

Speed= distance/time

Question 10

What unit of force measures weight?

Answer 10

A newton

Question 11

How many Newton’s are in 1 kg?

Answer 11

10 Newton’s are in one kg.

Question 12

Compress

Answer 12

To squish into a smaller space

Question 13

A push caused by an engine is a

Answer 13

Thrust

Question 14

What effect does lubrication have on friction?

Answer 14

It reduces it

Question 15

What effect does having a streamlined body have on water resistance

Answer 15

It reduces it