Which statement describes the motion of the student on the bicycle immediately after the wind started to blow, if the student continues to apply the same constant force to the pedals?

• The motion sped up.

• The motion reversed.

• The motion slowed down.

• The motion remained constant.

Tags

NGSS.MS-PS2-2

What could the student do to one of the wagons to achieve a greater increase in its speed than the other when an equal force is applied to both wagons?

• Put a bag filled with books in Wagon A only.

• Put a bag filled with books in Wagon B only.

• Push Wagon A towards the right instead of straight.

• Push Wagon A towards the left and push Wagon B towards the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which cart will speed up the most?

• the full cart pushed by one student

• the full cart pushed by two students

• the empty cart pushed by one student

• the empty cart pushed by two students

Tags

NGSS.MS-PS2-2

What are students supposed to do with the three different weights in the experiment?

• Heat them to different temperatures.

• Slide them across a sheet of ice by giving each a brief push.

• Measure the weight of each block.

• Drop them from the same height to see which lands first.

Tags

NGSS.MS-PS2-2

According to the experiment, what variable is being applied equally to each weight?

• Temperature

• Force

• Mass

• Friction

What is the purpose of selecting lines on the bar graph in part A of the experiment?

• To show the different weights of each block.

• To show the relative speed of each weight after the same amount of force is applied.

• To indicate the temperature of the ice.

• To measure the distance each block slides.

Tags

NGSS.MS-PS3-1

What is the purpose of selecting lines on the bar graph in part B of the experiment?

• To show the relative amount of force needed to slide each weight at different speeds.

• To show the relative amount of force needed to slide each weight at the same speed.

• To show the relative speed of each weight without any force applied.

• To show the relative distance each weight slides without any force.

Tags

NGSS.MS-PS3-1

According to diagram A, what happens to the speed of weights when the same force is applied to light, medium, and heavy weights?

• The speed of all weights is the same.

• The speed of light weights is higher than that of heavy weights.

• The speed of heavy weights is higher than that of light weights.

• The diagram does not provide this information.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Based on diagram B, what can be inferred about the force needed to move weights of different masses at the same speed?

• Light weights require more force than heavy weights.

• Medium weights require the least force.

• Heavy weights require more force than light weights.

• All weights require the same force.

Tags

NGSS.MS-PS2-2

What change could a student make to have the skateboard reach the end of the hall faster?

• Add more books to the stack.

• Use a smoother surface in the hall.

• Push the skateboard with less force.

• Remove the wheels from the skateboard.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5