Paper 2 Forces

Question 1

What is scalar quantity?

Answer 1

SCALAR quantity is:

quantity that has MAGNITUDE (size) only eg number of apples

Question 2

What is vector quantity?

Answer 2

Vector quantity has:

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BOTH MAGNITUDE (size) and DIRECTION - using arrows
Velocity which shows the speed and direction of travel
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Question 3

What is FORCE?

Answer 3

1. Force is a PUSH or a PULL. It occurs with OBJECTS INTERACT
2. All forces are VECTOR QUANTITIES (have magnitude & direction
3. UNIT of force is (N) newton

Question 4

Forces can be:

Answer 4

Forces can be:

CONTACT forces - objects physically touching - eg tension as 2 people pull against one another - eg or pull a rope

NON-CONTACT forces - objects not touching

Question 5

Name types of CONTACT FORCES:

Answer 5

Types of CONTACT FORCES:

FRICTION - AIR-RESISTANCE/DRAG - TENSION - UPTHRUST

Question 6

Types of NON-CONTACT FORCES

Answer 6

NON-CONTACT FORCES:

Gravitational force

Electrostatic force

Magnetic force