Flashcards in Motion And Forces Deck (12):

1

## What is Newton's First law?

### If there are no forces acting on a body, the object will continue to do what it is already doing

2

## What is Newton's Second Law?

###
For an external applied force, this change in velocity depends on the mass of the object. This can be expressed as:

F = MA

3

## What is Newton's third law?

### When two objects interact, the forces they exert on each other are equal and opposite. For every action there is an equal and opposite reaction

4

## What is the mass of an object?

### The amount of stuff that makes up something

5

## What is the weight of an object?

### The weight of an object is the amount of force pulling down on something due to gravity

6

## What is the equation for weight?

### Weight = mass x gravitational field strength

7

## What is Inertia?

### Inertia is the tendency for motion to remain unchanged. Objects will continue to do what they are doing unless acted on by a force.

8

## What is the equation for momentum?

### Momentum = mass x velocity

9

## What is thinking distance?

### The distance the car travels during the time it takes for the driver to react

10

## What is stopping distance?

### The distance the car travels before it comes to a stop when the brakes are applied.

11

## What is total stopping distance?

### The combined distance of thinking and stopping distance

12