Newton's Law Review

Which of the following is an example of balancing forces?

• A Book resting on the table.

• A pencil is knocked off the desk.

Tags

NGSS.3-PS2-1

What is Newton's 1st Law?

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

• An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

What is Newton's 2nd Law?

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

• Acceleration depends on two variables, the mass of the object and the amount of force.

What is Newton's 3rd Law?

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

• Acceleration depends on two variables, the mass of the object and the amount of force.

Tags

NGSS.MS-PS2-1

What explains why objects resist changes in their state of motion?

• gravity

• inertia

• force

• friction

Tags

NGSS.HS-PS2-1

Newton's first law states that an object must travel at a constant speed and in ___________, unless an unbalanced force acts on it.

• in a circle

• a wave like manner

• the same direction

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Tags

NGSS.MS-PS2-1

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Tags

NGSS.HS-PS2-1

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.

Tags

NGSS.MS-PS2-1

An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations

• Newton's first law
• Newton's second law
• Newton's third law
• Conservation of momentum

Tags

NGSS.MS-PS2-2