Forces

Question 1

Force is

Answer 1

A push or pull

Question 2

Types of forces

Answer 2

Contact

No contact

Question 3

Contact ex

Answer 3

Friction
Air resistance
Elasticity

Question 4

Non contact ex

Answer 4

Magnet

Gravity

Question 5

Newton 3rd law

Answer 5

Every action has an equal and opposite reaction

Question 6

Unit of force

Answer 6

N

Question 7

Normal force

Answer 7

Opposite force equal

Question 8

Newton

Answer 8

One N is the force required to accelerate a 1kg mass by 1m/s

Question 9

Resultant force

Answer 9

Opposite force minus

Question 10

If something is moving from side to side the horizontal and veritical forces are

Answer 10

The same

Question 11

Rules for calculating resultant

Answer 11

Same direction: add together
Opposite : take away
Vertical and horizontal: cannot add= considered separately

Question 12

Stationary: zero resultant

Answer 12

Stay in place

Question 13

Stationary. Non zero

Answer 13

Start to move

Question 14

Moving. Zero

Answer 14

Move at constant speed

Question 15

Moving. Non zero

Answer 15

Accelerate / decelerate

Question 16

Force

Answer 16

Push or pull
Change shape or state or monitor
Two types

Question 17

Engine force

Answer 17

Motive force : friction between car tyre

Question 18

Mass

Answer 18

Stay same

Question 19

Weight

Answer 19

Changes

Question 20

Bigger planet

Answer 20

More gravity

Question 21

Weight=

Answer 21

Mass. gravity

Question 22

Force

Equals

Answer 22

Mass. accelerate

Question 23

Terminal velocity

Answer 23

Stop object going faster

Fastest U can move with a certain surface area

Question 24

Vector

Answer 24

Something with magnitude and direction

Question 25

Force with magnitude

Answer 25

Scalor

Question 26

Hookes Law def

Answer 26

The extension of an object is directly proportional to the force that is applied

Question 27

Hookes law

Answer 27

F= k*E Force N = spring constant ( N/m * extension M

Question 28

Linear

Answer 28

Proportional