# OTS Elder Science Forces Test Part 1

## 16 terms · OTS 5th Grade Elder Forces Test 10/2009

### Force

A push or a pull on an object

### Friction

The force that opposes motion

### Acceleration

The rate of change in velocity

### Gravity

The force that pulls objects towards the ground

### Inertia

The characteristic of an object to resist or change movement

### Velocity

The change of speed and direction

### Speed

How fast an object is moving ( Distance / Time)

### Newtons's 1st Law of Motion

An object in motion wants to stay in motion and an object at rest wants to stay at rest

### Newton's 2nd Law of Motion

If a forces is applied to an object the objects velocity will change

### Newton's 3rd Law of Motion

For every action there is an equal and opposite reaction

### Newtons

The measure of force

Force / Mass

### Force Formula

Mass X Acceleration

### greater

The greater an objects mass the ________ its amount of inertia

### lesser

The lesser an onjects amount of mass the ________ its amount of inertia

### vector

A ________ is a symbol that shows wich way and how much a force is moving