Topic 1.9 Newton's Second Law of Motion LHS

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

• F = ma

• Fa = m

• F/m = a

• F = m/a

What is the unit of force in the metric system?

• Newton

• Joule

• Watt

• Pascal

What does Newton's Second Law of Motion state?

• The acceleration of an object is dependent upon the net force acting upon it and the mass of the object.

• An object at rest stays at rest.

• For every action, there is an equal and opposite reaction.

• Objects in motion stay in motion.

If speed is constant, then acceleration is _______.

• negative

• zero

• positive

• constant

If the net force is positive, we can assume that the acceleration is _________.

• positive

• negative

• 0

• not enough information to know

Which of the following would increase an object's acceleration?

• Increase the mass without changing the force.

• Decrease the mass without changing the force.

• Decrease the force without changing the mass.

If the net force acting on an object is doubled, what happens to the acceleration?

• It doubles.

• It quadruples.

• It halves.

• It remains the same.

What happens to the acceleration if the mass of an object is doubled while the net force remains constant?

• It halves.

• It remains the same.

• It quadruples.

• It doubles.

A 2kg object accelerates at 3m/s^2. What is the net force acting on it?

• 6N

• 2N

• 5N

• 9N

What is the relationship between force and acceleration?

• Directly proportional

• Exponentially proportional

• Inversely proportional

• No relationship