Newton's Laws of Motion

Which of the following statements about inertia is true?

• Inertia is independent of mass.
• Inertia decreases as mass increases.
• Inertia is directly proportional to mass.
• Inertia is inversely proportional to mass.

Newton's First Law is often referred to as the law of…

• Acceleration
• Inertia
• Motion
• Forces

If a car is moving at a constant speed and direction, what can be said about the forces acting on it?

• The net force is zero.
• The net force is positive.
• The net force is negative.
• The net force is increasing.

Which of the following describes the relationship between mass and acceleration for a constant applied force?

• They are directly proportional.
• They are inversely proportional.
• They are independent.
• They are equal.

What does Newton's Second Law state about acceleration?

• Acceleration is not affected by force.
• Acceleration is inversely proportional to net force.
• Acceleration occurs due to an unbalanced net force.
• Acceleration is always constant.

According to Newton's Third Law, if object A exerts a force on object B, then object B…

• Exerts a smaller force on object A.
• Exerts a larger force on object A.
• Exerts an equal and opposite force on object A.
• Exerts no force on object A.

What is inertia?

• The tendency of an object to change its state of motion.
• The resistance of an object to any change in its motion.
• The speed of an object in motion.
• The force required to stop an object.

If the net force acting on an object is zero, the object will…

• Accelerate forward.
• Move in a circle.
• Remain at a constant velocity.
• Stop immediately.

What is the formula for Newton's Second Law in terms of F, m, and a?

(a)  

An object will accelerate if…

• The net force is zero.
• It is in equilibrium.
• There is a net force acting on it.
• The forces are balanced.