Unit 9

Question 1

Unbalanced and balance forces

Answer 1

<—100 (_)50—>
The net force of this is 50N. If the forces were equal it would be balanced

Question 2

Free body diagrams net force

Answer 2

If a force of an object is moving 100N to the left and the force going to the right was 20N the net force is 80N

Question 3

Newton’s first law

Answer 3

Object at rest stays at rest. A object in motion stays in motion until a unbalanced force acts on it.
When I throw a tennis ball, it will keep going until gravity and air resistance slows it down.

Question 4

Newton’s second law

Answer 4

F=MA
A=F/M
M=F/A

Question 5

Newton’s third law

Answer 5

For every action there is a equal opposite reaction

Question 6

Newton’s third law every day

Answer 6

When I push on something with 100N, it has a equal opposite reaction of 100N

Question 7

Units

Answer 7

Force = Newtons
Mass= Kg
Acc= S/ms
Gravity = gravity

Question 8

Mass and height

Answer 8

When Release height and mas increase, force increases because the formula is F=MA so a bigger number times a bigger number is a bigger number.