Forces

Question 1

What can forces do to an object?

Answer 1

They can change its speed, shape or direction

Question 2

What are the laws of motion?

Answer 2

1st Law: An objects motion will not change unless acted on by a resultant force

2nd Law: F=ma Depending in an objects mass it will accelerate at different speeds when a force is applied

3rd Law: Every action has an equal an opposite reaction

Question 3

Name 3 different kinds of force

Answer 3

• Weight
• Magnetic
• Stretching
• Friction
• Air Resistance
• Electrostatic
• Gravitational

Question 4

What is the resultant force?

Answer 4

The overall force acting on an object

Question 5

What is the difference between vector and scalar quantities?

Answer 5

A vector quantity has magnitude and direction, scalar has only magnitude

Question 6

Are forces a scalar or vector quantity?

Answer 6

Vector

Question 7

What is the equation for force?

Answer 7

Force = Mass x Acceleration

F = ma

Question 8

What is the equation for weight?

Answer 8

Weight = Mass x Gravitational Feild Strength

W = m x g

Question 9

What is friction?

Answer 9

A force that opposes motion