Review for Energy, Forces, and Motion Enrichment

Which car is accelerating?

• a car that is set to a constant speed of 60 miles per hour

• a car that rounds a curve at a constant speed

• a car that travels in straight line at a constant speed

• a car that is unmoving

Tags

NGSS.MS-PS2-2

Which graph BEST shows the relationship of kinetic energy (solid line) to potential energy (dotted line) as a hawk dives downward toward its prey and then returns to its original position in the air?

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Tags

NGSS.MS-PS3-1

Consider the pendulum. At what point is the kinetic energy the greatest?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A ball is projected into the air. Where is potential energy the greatest?

• A

• B

• C

• A and C

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

John and Caroline go out for a walk one day. This graph represents their distance from home.Which statement accurately describes their walk?

• They walked faster and faster until they walked at a constant rate, then they walked slower and slower.

• They walked forward fast, then they were still, then they walked backward slow.

• They walked in one direction, then they were still, then they walked in the opposite direction.

• They walked quickly, then they were still, then they walked slowly.

Tags

NGSS.MS-PS3-1

When time was at 0 seconds, this graph describes the motion of a car that was going 10 meters per second. How fast is the car likely going after time passes?

• 15 meters per second.

• 5 meters per second.

• 10 meters per second.

• 0 meters per second.

Tags

NGSS.MS-PS3-1

In which situation is the object experiencing unbalanced forces?

• A penny at terminal velocity after falling off of a building.

• A car with its cruise control set to 30 km/h.

• A car slowing as it reaches a traffic light.

• A box resting on a horizontal floor.

Tags

NGSS.MS-PS2-2

An object in motion will stay in motion unless acted upon by what type of force?

• electrical

• unbalanced

• magnetic

• balanced

Tags

NGSS.MS-PS2-2

The law of inertia states that an object in motion will stay in motion, and an object at rest will stay at rest unless acted upon by an unbalanced force. Which law of motion is this describing?

Responses

• Newton's First Law

• Newton's Third Law

• The law of gravity

• Newton's Second Law

A box experiences a force of 2 N to the left and 3 N to the right. Which is true of the box's motion?

Responses

• The box's velocity will be 1 m/s.

• The box's velocity will not change.

• The box will slow down.

• The box will experience acceleration.

Tags

NGSS.MS-PS2-2