Forces

Question 1

What are contact forces?

Answer 1

Pushing and pulling

Question 2

What are non contact forces?

Answer 2

Gravity

magnetic force

Question 3

What does friction do?

Answer 3

Friction acts against the force to make things stop

Question 4

What is drag?

Answer 4

Drag/air resistance works by objects and air particles colliding, drag slows down the movement of objects

Question 5

What are force is measured in?

Answer 5

Newtons N

Question 6

What are balanced forces?

Answer 6

Balance forces means the same force just in different directions
Moves at a constant speed

Question 7

What are unbalanced forces?

Answer 7

Unbalanced forces means an object will speed up (accelerate) or slowdown

Question 8

What is the resultant force?

Answer 8

The resultant force is the difference between two forces

Question 9

What is terminal velocity?

Answer 9

Terminal velocity is the fastest speed you can go

Question 10

What happens when you are skydiving?

Answer 10

You accelerate and then you go at a constant speed (terminal velocity)

Question 11

What happens the Fastie fall?

Answer 11

There is more air resistance

Question 12

What is mass?

Answer 12

Mass is the amount of stuff in object is made up of

Question 13

What are the units of mass?

Answer 13

Kg
g
mg

Question 14

What is weight?

Answer 14

Weight is the effect of gravity acting on the mass

Weight is not a force

Question 15

What force does gravity pull with?

Answer 15

Gravity pulls with a force of

10 N/kg

Question 16

Gravity has a force of pulling two what together?

Answer 16

Gravity has a force of pulling two different objects together

Question 17

The bigger the object the bigger the what?

Answer 17

The bigger the object the bigger the gravitational pull

Question 18

In space what would your weight be?

Answer 18

0 N

Question 19

What does not change in space?

Answer 19

Your mass does not change in space

Question 20

What is the formula for speed?

Answer 20

Speed = distance / times

Question 21

What is the time formula?

Answer 21

Time = distance/speed

Question 22

What is the distance formula?

Answer 22

Distance = speed * time

Question 23

Why does your maths not change in space?

Answer 23

Your master is not change because you haven’t taken any stuff away from yourself

Question 24

Does your weight change in space?

Answer 24

Yes because the gravitational pull varies on each planet

Question 25

What is a pivot?

Answer 25

A pivot turns around but doesn’t move place

Question 26

The further away from the pivot you get what is greater?

Answer 26

The further away from the pivot the greater the turning force (moment)

Question 27

What is the formula for turning force (moment)?

Answer 27

T.F (moment) = force * distance from pivot

Question 28

What is the formula for distance from pivot?

Answer 28

Distance from pivot = T.F (moment)/force

Question 29

What is the formula for force?

Answer 29

Force = T.F (moment)/distance from pivot

Question 30

The smaller surface area the what pressure?

Answer 30

Smaller surface area the higher the pressure

Question 31

The Large surface area is what pressure?

Answer 31

The larger the surface area to lower the pressure

Question 32

The formula for pressure?

Answer 32

Pressure = force/area

Question 33

The formula for force?

Answer 33

Force = pressure* area

Question 34

The formula for area?

Answer 34

Area = force/pressure

Question 35

What is the T.F (moment) affected by?

Answer 35

The size of the force (weight)

The distance from the pivot

Question 36

The lower down to earth and get the atmospheric pressure is what?

Answer 36

The lower down to earth and get the atmospheric pressure is higher

Question 37

In an aeroplane the air pressure is a lot lower explain this?

Answer 37

The pressure in an aeroplane is a lot lower because you are higher from the earth