Unit Review - MS-PS2-2

Newton’s First Law of motion is sometimes referred to as the law of (a)   .

True or False: Newton’s First Law states that an object in motion will remain in motion unless acted upon by an outside force.

• True

• False

Newton’s Second Law states; Force is equal to mass times (a)   .

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NGSS.MS-PS2-2

On average a football is thrown with an acceleration of 1.25 m/s/s. The ball has a mass of 0.4 kilograms. Calculate the average force acting on the football.

• 0.25 Newtons

• 0.32 Newtons

• 0.5 Newtons

• 3.13 Newtons

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NGSS.MS-PS2-2

True or False: A spaceship is traveling at 1,100 m/s. No gravity or air resistance acts on the ship. If no external forces act on the ship, the ship will eventually slow down.

• True

• False

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NGSS.MS-PS2-2

An object is moving at 5 meters per second across a flat surface. The object is neither gaining nor losing speed. This is considered a/an (a)   force.

A car is accelerating down a hill at 3 m/s/s. This would be an example of a/an (a)   force.

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NGSS.MS-PS2-2

The total force acting on an object is known as the (a)   force.

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NGSS.MS-PS2-2

Two cars are attached by a chain. One car is pulling to the left with three newtons of force and the other car is pulling to the right with six newtons of force. Calculate the direction of the net force.

• Nine Newtons to the Right

• Three Newtons to the Left

• Three Newtons to the Right

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NGSS.MS-PS2-2

True or False: One car has a mass of 2000 kilograms and an acceleration of 5 m/s/s. The calculated force acting on this object is 400 Newtons.

• True

• False

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NGSS.MS-PS2-2