Newtons First law
Newtons 2nd law
Newtons 3rd law
Balanced and unbalanced forces.
Net Force
100

Passengers in a car without a seatbelt are thrown forward when the car suddenly stops Which of Newton's laws explains this?

  1. The Law of Inertia.
100

What is the common equation that represents Newton's Second Law?

F = ma

100

What is another name for Newton's Third Law of Motion

The law of action and reaction.

100

A book sitting on a shelf is an example of what type of force

Balanced forces

100

What is net force?

The sum of all the forces acting on an object. 

200

An object is released in space far from any other objects. What will happen to it if it has an initial momentum? 

what is motion.

200

What are the units for force in the metric system.

What is newtons.

200

Does a rocket push on the Earth or on something else to propel itself into space

A rocket pushes on the gases it expels

200

If a car is moving at a constant speed, are the forces acting on it balanced or unbalanced?

Balanced.

200

What is the unit of force and therefore net force?


Newton.

300

A coin falls into a cup when the coin's supporting index card is flicked away What principle from Newton's first law explains why the coin falls straight down?

An unbalanced force

300

What is the relationship between force, mass, and acceleration in Newton's Second Law?

Acceleration is directly proportional to the net force.

300

What does Newton's Third Law state about forces

For every action there is an equal and opposite reaction.

300

In a tug-of-war if both teams pull with the exact same force in opposite directions the forces are

Balanced not move.

300

What happens when the net force on an object is zero?

what is Balanced forces?

400

Why do hockey players want the ice to be smooth

An unbalanced force

400

If you push a bowling ball and a tennis ball with the same amount of force.Which will accelerate more?

What is Tennis Ball?

400

If you push on a wall what is the reaction to that action

The wall pushes back on you with an equal and opposite force.

400

What happens to an object when only unbalanced forces act on it.

It will accelerate (speed up).

400

Two people push a box Person A pushes with 20 N to the right, and Person B pushes with 15 N to the left. What is the net force?

20-15=5N

500

If a car requires 1000 N of force to maintain a constant velocity  what is the magnitude of the frictional force acting on the car

  1. An object's inherent resistance to any change in its state of motion.
500

What happens to the acceleration of an object if its mass is doubled, but the applied force remains the same?

The acceleration will be halfed.

500

Give one example of Newton's Third Law in action.

what is newtons third law?.

500

Which term describes a push or a pull on an object?

Force.

500

A car travels at a constant speed are the forces acting on it balanced or unbalanced.

Balance Forces.