Inertia and Newton's Laws Assessment

An object at rest stays at rest, and an object in motion stays in motion, unless acted upon by an external force. This statement describes:

• Newton's First Law
• Newton's Second Law
• Newton's Third Law
• The Law of Conservation of Energy

A car suddenly stops at a red light. The passengers lurch forward because:

• They have negative inertia
• Their bodies want to maintain their state of motion (inertia)
• The car's brakes pull them forward
• Gravity increases during sudden stops

Force equals mass times acceleration (F = ma) is known as:

• The Law of Inertia
• Newton's First Law
• Newton's Second Law
• Newton's Third Law

If you increase the mass of an object but keep the force constant, what happens to acceleration?

• Acceleration increases
• Acceleration decreases
• Acceleration stays the same
• Acceleration becomes zero

For every action, there is an equal and opposite reaction. This statement describes:

• The Law of Inertia
• Newton's First Law
• Newton's Second Law
• Newton's Third Law

A book sitting on a table experiences a downward force due to gravity. According to Newton's Third Law, what is the reaction force?

• Air pressure pushing down
• The table pushing up on the book
• The book's internal forces
• There is no reaction force

Which has more inertia?

• A 1 kg brick
• A 10 kg brick
• Both have the same inertia
• Inertia cannot be compared

When a rocket expels gas backward, it moves forward due to:

• Gravity
• Inertia
• Newton's First Law
• Newton's Third Law

A 2 kg mass experiences a force of 10 N. What is its acceleration?

• 5 m/s²
• 20 m/s²
• 0.2 m/s²
• 2 m/s²

Why is it harder to stop a moving truck than a moving bicycle?

• The truck has less mass
• The truck has more inertia
• The truck has less friction
• The truck has more speed