Newton's Laws

You push against a wall and the wall is pushing back on you.

• Newton's

  1st

  Law of Motion

• Newton's

  2nd

  Law of Motion

• Newton's

  3rd

  Law of Motion

• Law of Conservation of Mass

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

• action force

• reaction force

• net force

• inertia

Tags

NGSS.MS-PS2-1

A sled sliding on a flat, icy surface with a constant velocity is best described by

• Newton’s first law of motion for objects at rest.

• Newton’s first law of motion for objects in motion.

• Newton’s second law of motion.

• Newton’s third law of motion.

Tags

NGSS.MS-PS2-2

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• None of them

Newton's third law states that any action will have a(n) _______ and ______ reaction

• equal and same

• equal and opposite

• equal and equal to

Tags

NGSS.MS-PS2-1

A bicycle has a mass of 20 kg. A small car has a mass of 1,000 kg. A force is applied to accelerate the car from a standing position to a speed of 1 m/s. If the same force that was applied to the car is applied to the bicycle at rest, to what speed will the bicycle accelerate in one second?

• 0.002 m/s

• 1 m/s

• 20 m/s

• 50 m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In which of the following situations will the ball have the greatest acceleration?

• A golf ball with a mass of 0.045 kg is struck with a force of 1 N.

• A baseball with a mass of 0.142 kg is hit with a force of of 5 N.

• A soccer ball with a mass of 0.45 kg is kicked with a force of 20 N.

• A bowling ball with a mass of 7.2 kg is thrown with a force of 60 N.

Tags

NGSS.MS-PS2-2

Two metal spheres are suspended on wires so that they hang next to each other, just touching. Sphere X is raised to a certain height and released. Without friction or air resistance, Sphere Y would be expected to react by swinging out in the opposite direction -

• to a height that could hardly be detected.

• to half the original height of Sphere X.

• to the same original height as Sphere X.

• to twice the original height of Sphere X.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

According to Newton’s first law of motion, which of the following objects will change its motion?

• A bike rider on a smooth and level road, pedaling at a constant rate.

• A train pulling on another train, each with the same amount of force.

• A chair sitting on the floor with balanced forces acting in opposite directions.

• A ball rolling across the floor with friction acting in the opposite direction.

Examine the table provided. Which of the objects is producing the greatest force?

• Soccer ball

• Tennis ball

• Marble

• Ping-Pong Ball