Science Force and Motion

Newton's Third Law States:

• F=ma

• An object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.

• A regularly occurring or apparently inevitable phenomenon observable in human society.

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

Tags

NGSS.MS-PS2-1

What is Newton's First Law of Motion?

• Newton's First Law of Motion states that an object at rest will start moving on its own.

• Newton's First Law of Motion states that an object in motion slows down over time.

• Newton's First Law of Motion states that an object in motion will change direction spontaneously.

• Newton's First Law of Motion states that an object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an external force.

Explain the difference between static and kinetic friction.

• Static friction is the friction between two surfaces that are sliding past each other.

• Static friction is the friction between two surfaces that are not moving relative to each other, while kinetic friction is the friction between two surfaces that are sliding past each other.

• Kinetic friction is the friction between two surfaces that are not moving relative to each other.

• Static friction is the friction between two surfaces that are moving relative to each other.

Define balanced forces and provide an example.

• Balanced forces are forces that are unequal in size and opposite in direction, resulting in no change in an object's motion.

• Balanced forces are forces that are equal in size and same in direction, resulting in no change in an object's motion.

• Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in an object's motion. An example of balanced forces is a book resting on a table.

• An example of balanced forces is a car accelerating on a highway.

What is Newton's Second Law of Motion?

• Force equals mass times acceleration (F = ma)

• Force equals mass divided by acceleration (F = m/a)

• Acceleration equals force divided by mass (a = F/m)

• Mass equals force times acceleration (m = Fa)

Tags

NGSS.HS-PS2-1

How does friction impact the motion of an object?

• Friction accelerates the motion of an object

• Friction causes the object to move in a straight line

• Friction has no impact on the motion of an object

• Friction impacts the motion of an object by creating a force that opposes the object's motion.

Tags

NGSS.MS-PS2-2

Why do objects fall to the ground when dropped?

• Friction

• Magnetic force

• Inertia

• Gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Give an example of unbalanced forces acting on an object.

• A car accelerating forward while the brakes are being applied.

• A person standing still

• A ball rolling down a hill

• A book resting on a table

Tags

NGSS.HS-PS2-1

What is Newton's Third Law of Motion?

• For every action, there is no reaction.

• The reaction is always greater than the action.

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

• Every action has an unequal and opposite reaction.

Tags

NGSS.MS-PS2-1

What is Newton's 1st law of inertia about?

• for every action there is an equal and opposite reaction

• an object in motion stays in motion and an object at rest stays at rest, unless acted upon by another FORCE

• FORCE = mass x acceleration