# Newtons first and Second law of motion

### 26 terms by Charlie_425

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### True

When the net force is zero, the forces on an object are balanced.

### False

If two forces are in the same direction, they cancel each other out.

### False

Any time the forces are unbalanced, an object will remain at rest.

### True

According to Newton's first law of motion, an object at rest will stay at rest until a net force acts upon it.

### True

According to Newton's first law of motion, an object moving at a constant speed in a straight path will continue to do so until a net force acts upon it.

### True

Friction brings most moving objects to a stop.

### True

Friction will never speed up an object.

### False

Galileo believed that the natural state of an object was to be at rest.

### False

If you slide a bag of groceries along a countertop, you must first overcome rolling friction.

### True

Walking would be impossible without rolling friction.

### False

Rolling friction always reduces the net force acting against an object's motion to zero.

### False

Sliding friction is caused by the attraction between two surfaces.

### True

If an objects accelerates, a push or pull must be acting on it.

### True

If an object is not moving, the net force working on it is zero.

### True

Friction can be reduced but never eliminated.

### gravity

___ exists between any two objects that have mass.

### acceleration

___ occurs any time an object speeds up, slows down, or change direction.

### force

In the formula a=Fnet divided by m, the Fnet stands for___.

### normal force

When you sit in a chair, it exerts ____ against you.

### newtons

Force is measured in ____.

### attraction

A gravitational ________exists between you and every object in the universe.

### mass

In the formula a= Fnet divided by m, the m stands for ____.

### velocity

____descibes how fast an object is moving and in what direction.

### accelerate

An object acted upon by a force will ________in the direction of the force.`

### motion

which of the following changes when an unbalanced force acts on an object?

### sliding friction

which of the following is the force that slows a book sliding on a table

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