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Which of the following is a unit of force?

• Joule

• Newton

• Watt

• Pascal

What does Newton's First Law of Motion state?

• Force equals mass times acceleration.

• Every action has an equal and opposite reaction.

• An object in motion stays in motion unless acted upon by an external force.

• The acceleration of an object depends on its mass and the applied force.

What is the formula for calculating acceleration?

• Distance / Time

• Force / Mass

• Mass x Velocity

• Velocity x Time

Which law of motion explains why you feel pushed back into your seat when a car accelerates quickly?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Conservation of Energy

What is the term for the force that opposes the motion of an object through air?

• Gravity

• Friction

• Air resistance

• Tension

Which of the following represents Newton's Second Law of Motion?

• F = m/a

• F = m x a

• F = m + a

• F = a/m

Which factor does NOT affect the force of friction between two surfaces?

• The roughness of the surfaces

• The area of contact between the surfaces

• The mass of the object

• The type of material of the surfaces

What is inertia?

• The resistance of an object to a change in its state of motion

• The force that accelerates an object

• The speed of an object in a particular direction

• The amount of matter in an object

If an object is moving at a constant velocity, what can be said about the net force acting on it?

• It is zero

• It is equal to the weight of the object

• It is equal to the mass times acceleration

• It is increasing

What type of force causes an object to move in a circular path?

• Centripetal force

• Gravitational force

• Frictional force

• Magnetic force