# Mechanics

Everything for the mechanics section of the edexcel spec

HideShow resource information
Word Document 21.41 Kb

## Pages in this set

### Page 1

Physics Paper 1 (Mechanics)

speed = distance
time

However, this formula only gives the average speed over time and does not take into account any times when a lower or higher speed. For this reason, motion is represented on a graph. They are represented as
displacement/time, velocity/times, acceleration/time where each…

### Page 2

Newton's 3 laws of motion:
1. If a body has a number of forces F1, F2...Fn acting on it, it will remain in a state of constant motion only if F=0.
2. Acceleration is directly proportional to the objects mass and the force applied by the equation F = ma…

### Page 3

useful energy output
Efficiency = Energy input x100

Power is a measure of the rate at which energy is transferred.

energy transferred
P ower = time

Because energy can also be determined as work, which is distance x force, the distance and time cancel to form:

P ower = force…