Unit 2 Test Review

 How much force is acting on a model car when the acceleration is 3.0 m/s2 and the mass of the car is 30g?

• 10 N

• 90 N

• 60 N

• 6 N

Tags

NGSS.MS-PS2-2

Three forces are acting on the box shown in the diagram. How will these forces affect the position of the box?

• The forces will cause the box to move to the right.

• The forces will cause the box to collapse to the ground.

• The forces will cause the box to move to the left.

• The forces will be unable to move the box in any direction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

At the top of its swing, the pendulum, in the diagram above, has zero kinetic energy.  How much potential energy does it have at the bottom of its swing?

• one-quarter as much

• half as much

• zero

• maximum

Tags

NGSS.MS-PS3-2

When riding a roller coaster, you go up and down many hills.  When do you have the least amount of kinetic energy?

• at the bottom of each hill

• as you go up each hill

• as you go down each hill

• at the top of each hill

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Two ropes are tied to a steel ring, and a student holds the free end of each rope.  The students then pull the ropes in a tug-of-war.  If the forces exerted by the students are unbalanced, what happens to the ring?

• The ring remains at rest.

• The ring moves at a constant velocity.

• The ring accelerates in the direction of the net unbalanced force.

• The ring accelerates in the direction opposite the net unbalanced force.

Tags

NGSS.MS-PS2-2

Explain what happens to the potential energy of the rock, in the figure above, as it falls off the side of a cliff.

•  

  The potential energy decreases as the kinetic energy increases.

• The potential energy decreases as the kinetic energy decreases.

• The kinetic energy decreases as the potential energy decreases.

• The kinetic energy decreases as the potential energy increases.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Refer to the diagram above to finish the statement.

When the ball is at position P, _______________ .

•  

  it has both potential and kinetic energy

• all of the ball’s energy is kinetic

• the ball has no energy

• all of the ball’s energy is potential

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When riding a roller coaster, you go up and down many hills.  As you get to the top of the roller coaster, what energy change is taking place?

• Heat energy is changed into chemical energy.

• Kinetic energy is changed into potential energy.

• Potential energy is changed into kinetic energy.

• Chemical energy is changed into heat energy.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Mary is driving on a straight road.  When a deer jumps out in front of her, she turns her car sharply to the left.  What happens to the loose objects inside her car?

• The loose objects will tend to move to the left inside the car.

• The loose objects will tend to move towards the back of the car.

• The loose objects will tend to move towards the front of the car.

• The loose objects will tend to move to the right inside the car.

Tags

NGSS.MS-PS2-2

Two opposing forces are acting on a box.  Which set of forces will cause the box to move to the right?

• a = 22 N, b = 22 N

• a = 12 N, b = 13 N

• a = 15 N, b = 14 N

• a = 0 N, b = 6 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2