Exploring Newton's Laws of Motion

Which of Newton's laws states that an object at rest stays at rest unless acted upon by an external force?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Universal Gravitation

What is the formula for Newton's Second Law of Motion?

Newton's Third Law states that for every action, there is:

• No reaction

• An equal and opposite reaction

• A greater reaction

• A smaller reaction

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What is the SI unit of force?

• Kilogram

• Newton

• Joule

• Meter

Which term describes the force that opposes the motion of two surfaces sliding past each other?

• Gravity

• Friction

• Magnetism

• Tension

What is the difference between mass and weight?

• Mass is the amount of matter; weight is the force due to gravity

• Mass is measured in Newtons; weight in kilograms

• Mass changes with location; weight does not

• Mass is a force; weight is a property

Which law explains why passengers move forward when a car suddenly stops?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Conservation of Energy

If a book is at rest on a table, which force balances its weight?

• Friction

• Normal force

• Tension

• Air resistance

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Which of the following is an example of Newton's Third Law?

• A ball rolling on the ground

• A swimmer pushing water backward and moving forward

• A car accelerating

• A book resting on a table

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