Science Force and Motion

What is Newton's 2nd law?

• 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

Tags

NGSS.HS-PS2-1

What is Newton's 3rd law?

• 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

Tags

NGSS.MS-PS2-1

What force keeps the planets orbiting the sun?

• gravity

• force

• motion

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What is The force that pulls objects down towards the center of the Earth.

• force

• gravity

• motion

Tags

NGSS.5-PS2-1

This force is caused by air and slows things down.

• gravity

• force

• air resistance

• Rocket 1

• Rocket 2

• Rocket 3

• Rocket 4

Tags

NGSS.MS-PS2-2

When a coin is tossed in the air, it travels upward, gradually slows down, momentarily reaches zero speed, then moves back downward with increasing speed. Which statement best explains this change in the coin’s motion?

• The force of gravity causes the coin to change its velocity

• The coin’s inertia decreases on the way up and increases on the way down.

• The action-reaction force pair of gravity and the applied force cancel each other.

• The coin remains in its state of upward motion until the force of friction acts upon it.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

• Kinetic energy increases. Potential energy decreases.

• Kinetic energy increases. Potential energy remains constant.

• Kinetic energy remains constant. Potential energy decreases.

• Kinetic energy remains constant. Potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Students drew the forces acting on a skateboard. The skateboard is currently rolling to the right on a level path at a constant speed. What is a possible magnitude for Force A?

• 100 N

• 200 N

• 0 N

• 50 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Miss Green has one student pull a wagon and then a second student starts to push it from behind, but the speed does not change. What is the dependent (outcome) variable in this experiment?

• The speed of the wagon

• The amount of applied force

• The amount of net force

• The number of forces acting on the wagon

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1