Force & Motion

Question 1

Define Force

Answer 1

A push or pull of an object

Question 2

Define Contact force

Answer 2

A force that is applied by objects in contact with each other. This force acts on a point of direct contact between the two objects

Question 3

Define Non-Contact Force

Answer 3

A force which can move objects without making contact

Question 4

Define Motion

Answer 4

Is a change in position of an object over time

Question 5

Define Weight

Answer 5

The force of gravity acting on an object

Question 6

Define Mass

Answer 6

The amount of material in an object

Question 7

Define Newton

Answer 7

The unit of force

Question 8

Define Friction

Answer 8

2 objects rubbing against each other

Question 9

Define Unbalanced Force

Answer 9

The net force is not zero, causing an object’s speed to change

Question 10

Define Balanced force

Answer 10

Forces acting in opposite directions are equal, giving a net force of zero

Question 11

Formula To find Weight

Answer 11

Weight(N)= Mass(kg) x Gravity(N)

Question 12

Formula to find Force

Answer 12

Force(N)= Mass(kg) x Acceleration(m.s-2)

Question 13

Example of Contact Force

Answer 13

• applied force
• spring force
• drag force
• frictional force
• normal force

Question 14

Example of non-contact force

Answer 14

• Magnetic Force
• electric force
• gravitational force

Question 15

Newtons 1st law

Answer 15

If forces acting on an object are balanced, then the object will remain stationary or carry on at the same speed in the same direction

Question 16

Newtons 2nd law

Answer 16

If forces acting on an object are unbalanced, then the object will accelerate in the direction that the net force acts

Question 17

Newtons 3rd law

Answer 17

When a force acts on an object, that object creates an equal but opposite force
(called action-reaction)

Question 18

Name effects of a force

Answer 18

Can make objects move
Can make objects move faster or slower
Can stop moving objects
Can change the shape of the object
Can change the size of the object
Can change the direction in which the object moves

Question 19

Forces always have a s____ and a d______

Answer 19

spring and a direction