Force

Question 1

Electric force

Answer 1

Electricity can cause objects to move eg . A charged pen can lift paper

Question 2

Magnetic force

Answer 2

Magnets can cause objects to move eg . In a car scrapyard

Question 3

Gravity

Answer 3

The force keeping us on the earth

Question 4

Friction

Answer 4

The force that opposes movement of 2 surfaces in content.

Question 5

Advantages of friction

Answer 5

Breaks on a car
Tires on a car
Being able to walk

Question 6

Disadvantages of friction

Answer 6

Shoes wearing out

Tires wear out

Question 7

What does hooked law state

Answer 7

It states that the extension of a spiral spring is directly proportional to the applied force in newtons

Question 8

What is a lubricant

Answer 8

A lubricant is used to reduce friction between two surfaces in contact

Question 9

What is weight

Answer 9

Weight :
Is a force
Is measured in newtons
Has a directions
Gets smaller as u rise above ground level
Of a object can change
Of an object is the pull of the earth on it

Question 10

What is mass

Answer 10

Mass:
Is an object is the amount of matter in it 
Is measured in grams and kg
Doesn't have a direction
Mass of an object remains constant

Question 11

What is a force

Answer 11

A force is a push or pull . Force is measured in neutons