Chapter 2.3 Newton's 2nd Law

Why would one ball accelerate more than the other when pushed with the same amount of force?

• Different weights
• Different forces
• Different masses
• Different sizes

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According to Newton's second Law, which would take more force to slow down?

• The silver car

• The green car

• They would both take the same force

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What Newtons law does this picture represent

• Newtons 2nd law 
• Law of gravity 
• Newtons 1st law
• Newtons 5th law

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A bus hits a bug and the bug splatters on the windshield, which acceleration is greater?

• The bus
• The bug
• They are the same
• not possible to determine

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A bus hits a bug and the bug splatters on the windshield, which force is greater?

• The Bus
• The Bug
• They're the same
• Gravity acting on the bus

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A book rests on a table.  The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec²    

• The table presses back up on the book with an equal and opposite force of 20 newtons.
• The table presses back up on the book with a force greater than 20 newtons.
• The table and the book together are accelerating downwards at  9.8 m/sec²
• The inertia of the book holds it up

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A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?

• For every action there is an equal and opposite reaction.
• Every mass exerts a force on every other mass.
• An object at rest tends to stay at rest.
• Friction opposes the motion of an object.

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When gravity pulls a skydiver towards the Earth, the reaction force is...

• The skydiver pulling the Earth.
• Air resistance
• The weight of the skydiver
• Drag

In the interaction between the skydiver and the Earth, which object will accelerate most and why?

• The Earth will accelerate more due to its inertia.
• The skydiver will accelerate more due to air resistance.
• The skydiver will accelearate more since he/she has less inertia.
• Both the Earth and the skydiver acceelrate eqyually due to Newton's third law.

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A 500 Kg cannon fires a 5 Kg cannonball.  Which object experiences the greatest force?

• The cannon
• The cannonball
• The forces are equal and opposite.
• Not possible to determine

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