Newton's Law Review

Newton’s first law of motion states that an object at rest will stay at rest unless acted upon by an outside force. Which activity is an example of this law?

• A football is kicked off a tee.

• A baseball player slides into second base.

• A floating stick is carried over a waterfall.

• A bicycle travels faster as it goes downhill.

A bowling ball sitting motionless on a table exerts a downward force on the table. The force exerted by the table must be

• equal to the force of the ball.

• continually changing with the ball.

• greater than the force of the ball.

• less than the force of the ball.

Tags

NGSS.MS-PS2-2

Isaac Newton discovered the three laws of motion. Which example BEST illustrates Newton’s third law of motion, which describes action and reaction forces?

• a rocket takes off from the ground

• a book slides forward on a seat when the car stops

• a heavier ball falls at the same speed as a lighter ball

• a vehicle rounds a curve and changes its acceleration

Tags

NGSS.MS-PS2-1

A student pushes on an object with a force of 6 newtons and the object does not move. What force does the object exert on the student’s hands?

• 0 N

• 3 N

• 6 N

• 12 N

Tags

NGSS.MS-PS2-1

During a classroom discussion on motion, the teacher instructs the class to write down something that specifically addresses Isaac Newton’s second law of motion. Which of these responses would BEST represent the second law?

• For every action there is an equal and opposite reaction.

• Every object continues at rest unless acted on by outside forces.

• Acceleration depends on the force applied and the mass of an object.

• the force of friction between the briefcase and the floor

Tags

NGSS.MS-PS2-2

The action of swimmers using their arms to propel themselves through the water is an example of what law?

• Newton’s first law of motion

• Newton’s third law of motion

• law of conservation of linear momentum

• law of conservation of angular momentum

Tags

NGSS.MS-PS2-1

Based on the graph, the object is......

• travelling at a constant speed.

• speeding up.

• slowing down

• at rest.

Tags

NGSS.MS-PS3-1

Based on the graph, the object is......

• travelling at a constant speed.

• speeding up.

• slowing down

• at rest.

A truck is at rest . Which statement describes the forces acting on the truck? 

• The forces are unbalanced so motion occurs. 

• The forces are balanced so no motion occurs

• The forces are balanced so motion occurs.

• The forces are unbalanced so no motion occurs

Tags

NGSS.MS-PS2-2

Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?

• The car with the larger mass will have less inertia than the car with the smaller mass.

• The car with the smaller mass will take longer to stop than the car with the larger mass.

• The car with the larger mass will maintain its velocity while traveling down the hill.

• The car with the smaller mass will require less force to stop than the car with the larger mass.

Tags

NGSS.MS-PS2-2