Newton's Laws of Motion

If you double the mass of an object with the same force apply on it, the acceleration will

• double
• cut in half
• the same
• zero

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A book weighs 4 N. When held at rest in your hands, the net force on the book is
 

• 0 N.
•  0.4 N.
•  4 N.
•  39 N.

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A 20 kg bike accelerates at 10 m/s².  what was the net force

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

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When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

• The cannon moving forward
• The cannonball moving forward
• The cannon moving backward
• The cannonball moving backward

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The tendency of an object to stay in motion or at rest is called 

• velocity
• acceleration
• speed
• inertia

As the wheels of a train push down on the track, the track pushes back against the wheels. Which of Newton's laws is used to explain these forces.

• An object at rest tends to stay at rest unless acted upon by an unbalanced force.
• The net force of an object is its mass times its acceleration.
• For every action, there is an equal and opposite reaction.
• Any 2 objects exert a gravitational force of attraction on each other.

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Which example best explains Newton's Third Law of Motion?

• When a glass slid across a table, it spilled water when it stopped suddenly.
• An engine used less work to move a lighter car than when it moved a heavier car.
• When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body. 

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The force that draws all objects towards Earth.

• friction
• gravity
• mass
• acceleration

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Who invented the 3 Laws of Motion?

• Sir Francis Bacon
• Sir Isaac Newton
• Johannes Kepler
• Galileo Galilei

Newton's first law that says an object at rest will remain at rest unless acted upon by an unbalanced force is also called the law of 

• acceleration
• inertia
• action and reaction
• may the force be with you