RHMS T1 Science Review

 Choose the best two words which fill both blanks. For every ___________ force  there is an equal and opposite reaction force between ___________________ objects.

• C. Newton's 3rd law and mass

• D. motion and weight

• A. push and pull

• B. action and interacting object

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NGSS.MS-PS2-1

At the moment they collide, a baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?

• C. 200 Newtons, same direction

• B 100 Newtons, opposite direction

• D. 200 Newtons, opposite direction

• A. 100 Newtons, same direction

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A book pushes down on a table with a force of 5N, the table

• pushes up with a force of 4N

• Does not push back

• pushes down with a force of 4N

• pushes back with a force of 5N

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NGSS.MS-PS2-1

 You can determine that something is in _____________________ because you can see a change in position of an object relating to time

• Direction

• Force

• Speed

• Motion

Which of the following is example of Newton’s Third Law:

• You jump on a trampoline. it springs you back into the air

• A rocket’s thrust pushes it out of Earth’s atmosphere

• A swimmer pushes against a pool wall to begin swimming a lap.

• All of these

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 To strike or hit something with great force means to ________________________

• Collide

• Motion

• Action

• Gravity

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NGSS.MS-PS2-1

According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backwards because -

• D. for the force that sent the person forward, there is an equal force pushing back on the skateboard.

• C. the air resistance on the person is great and the friction on the skateboard is small.

• B. the pull of gravity on the person is the same as on the skateboard, regardless of size.

• A. the mass of the skateboard is the same as the mass of the person jumping off.

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 A ________________________ is a push or a pull that can change an object’s motion.

• Force

• Collide

• Strike

• Action

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NGSS.MS-PS2-2

The head of a hammer is often made of steel. This makes the head heavy, which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist what force?

• C. The force of gravity pulling down on the hammer

• D. The force of the nail pushing in the opposite direction

• A. The force of the air resistance on the moving hammer

• B. The force of the person using the hammer

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NGSS.MS-PS2-1

Which of the following is true about mass and weight?

• C. As the weight of an object increases, the amount of mass the object has decreases.

• D. Mass is the amount of matter that an object is made up of, and does not change. Weight can be different based on the amount of gravitational force.

• B. Weight is the amount of matter that an object is made up of, and does not change. Mass can be different based on the amount of gravitational force.

• E. Both A and D

• A. As the mass of an object increases the object's weight will also increase.

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