Physics EOY Revision

Question 1

Equations

Answer 1

Force = mass x acceleration

weight = mass x gravitational Field Strength

speed = distance/time

Voltage = current x resistance

Question 2

What is a Force?

Answer 2

A force is an action which causes acceleration, deceleration or change is shape or size. The unit for measuring Force is Newtons N. And force is represented as a F.

Question 3

Types Of Forces

Answer 3

Weight = A force which is due to gravity. A force which is due to the source of the gravitational field. On earth that points downwards

Tension = A force that acts in the direction of a rope or similar objects like a wire.

Friction = A force which happens in the opposite direction of motion when two surfaces are moving and in contact.

Air Resistance = A force which happens in the opposite direction of motion in the air.

Normal Contact Force = A force that acts perpendicular to a surface on an object which is pushing against the object.