Speed & Forces

Question 1

What is a force?

Answer 1

A push or a pull

Question 2

What force is commonly, but incorrectly, referred to as gravity?

Answer 2

Weight

Question 3

What force slows down a moving object through the air?

Answer 3

Air Resistance

Question 4

What force pulls you towards the Earth?

Answer 4

Weight due to Gravity

Question 5

What formula is used to work out the average speed of something?

Answer 5

Speed = Distance/Time

Question 6

What apparatus is used to measure weight?

Answer 6

A Newton Meter

Question 7

What is the force that acts against moving things on the ground?

Answer 7

Friction

Question 8

If speed is distance/time, how do you work out the distance?

Answer 8

Speed x Time

Question 9

What is mass measured in?

Answer 9

Grams / Kilograms

Question 10

What is gravity measured in?

Answer 10

Newtons

Question 11

Is the force of you sitting on a chair balanced or unbalanced?

Answer 11

Balanced

Question 12

If I pushed you off that chair, what would happen to the force?

Answer 12

It would become unbalanced

Question 13

What does upthrust do?

Answer 13

Keeps things afloat

Question 14

What does friction always oppose?

Answer 14

Motion

Question 15

What are the characteristics of a streamlined shape?

Answer 15

1. Rounded Front
2. Slowly tapering tail
3. Smooth shape with no projections

Question 16

What are 2 ways to reduce friction?

Answer 16

Lubrication and streamlining

Question 17

What does weight measure?

Answer 17

The effect gravity has on an object

Question 18

Friction can be wanted or ……..?

Answer 18

Unwanted

Question 19

What does mass measure?

Answer 19

How much of something there is

Question 20

What formula can be used to measure density?

Answer 20

Density = Mass of object/Volume of object