Newton's First law
Newton's second law
Newton's third law
Force
Newton's Laws
100

What is the property of an object that makes it hard to change motion?

Inertia

100

The force due to gravity is called...

Weight

100

What contact  force opposes the motion of objects

friction

100

A push or pull that one body exerts on another

Force

100

How many laws of motion did Newton write? 

3

200

An unbalanced force can change what two things about an objects motion?

Speed and Direction

200

What is the force of attraction between two masses?

Gravity

200

If a 65 kg student exerts a net force of 100 N on a 100 kg desk, what is the magnitude of the force that the desk exerts on him?

100 N

200

Forces that are not equal are called 

Unbalanced force

200

For every action there is an equal and opposite reaction force

Newton's third law of motion

300

An object that is still will only change if acted upon by what

Unblanaced force

300

The equation for Newton's second law is...

F=ma

300

You and a friend are pulling on a rope in opposite directions as hard as you can. What is the "equal and opposite force" to the force of your hand pulling on the rope described by Newton's Third Law?

The rope pulling your hand

300

What happens if the net force acting on an object is zero

The object's movement will not change

300

An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force

Newton's First Law 

400

An object with a lot of inertia is likely to do what

Resist change in movement

400

If a net force of 24 N is applied to an object with a mass of 6 kg, then what will the resulting acceleration be according to Newton's second law of motion?

4 m/s2

400

A student weighing 600 N stands on a scale in an elevator. If the scale reads 800 N, the elevator must bedoing what?

Accelerating upwards

400

What happens if the net force is any nonzero number

The object will accelerate/change motion

400

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional its mass

Newton's 2 law

500

An object is moving at a constant speed and there are balanced forces acting on it. What will happen to the object?

Continue at the same speed

500

An object is moving in a circle at a constant speed.It is experiencing an unblanced force.

True or False

True

500

A man shoots a rifle and the force of the shot results in recoil. The magnitude of the force on the rifle is __________ the magnitude of force on the bullet, and the magnitude of acceleration of the rile is __________ that of the bullet.

the same... smaller than

500

How do you calculate Net Force

You find the sum of all forces acting on the object

500

Which scientist did Newton study before writing his laws?

Galileo