Forces and Newton's Laws

If you can sit in a chair and the chair does not go collapsing to the floor. This is a demonstration of which of Newton's Laws.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Law of Gravitation

Which of the following is Not a contact force?

• Friction

• Applied Force

• Magnetism

• Normal

What is the SI unit used to measure force?

• Kg

• m/s/s

• m/s²

• N

What two forces counteract gravity?

• Normal Force and Frictional Force

• Normal Force and Air Resistance

• Air Resistance and Applied Force

• Magnetism and Electricity

The force that opposes the motion of an object.

• Friction

• Normal

• Applied

• Air Resistance

A force is a push or pull that causes an object to accelerate in the direction of the force.

• True

• False

Forces can either be balanced or unbalanced.

• True

• False

The direction of the normal force is always down.

• True

• False

You and your friend or pushing a 4 kg box with a force of 40 N each. What is the acceleration of the box.

• 10 m/s

• 10 m/s²

• 20 m/s

• 20 m/s²

According to Newton's 2nd Law, it the same amount of force is applied to a large mass object and a small mass object. Which object will have more acceleration.

• The larger mass

• The smaller mass

• They will have the same amount of acceleration.

• Neither would accelerate.