Force and Motion

2. By changing the surface over which the car rolls from sandpaper to wax paper, you might be able to test the effect of what force?

• A. Magnetism

• B. Wind

• C. Wind

• D. Friction

Tags

NGSS.MS-PS2-2

The toy car and ramp seen above might be used to answer which testable question?

• A. What material is the ramp made of?

• B. Which toy car looks the best?

• C What effect does gravity have on a toy car?

• D. What metal makes the best toy cars?

Tags

NGSS.MS-PS2-2

How might you test the strength of several different types of magnets?

• F. Submerge each magnet in water

• F. Submerge each magnet in acid

• H. Find the mass of each magnet

• J. Measure the attraction force of each magnet

Tags

NGSS.MS-PS2-3

5. An experiment is conducted to measure the amount of force required to push a square cardboard box from one side of the room to the other side. What variable is likely to lessen the force required?

• A. Adding several heavy weights to the box

• B. Tipping the box onto its side

• C. Adding another box on top

• D. Placing the box onto a wheeled cart

Tags

NGSS.MS-PS2-2

6. Some students were investigating if the height that a ball was dropped would affect its bounce. The ball was dropped at 60 cm and at 80 cm. What statement is true of the results for each of the heights that the balls were dropped?

• F. There was no difference in the results.

• G. The ball dropped from 60 cm bounced 20 cm higher than

  the ball dropped from 80 cm.

• H. The ball dropped from 80 cm bounced higher than the ball dropped from 60 cm.

• J. The ball dropped from 60 cm bounced higher than the ball dropped from 80 cm.

Tags

NGSS.MS-PS3-2

9. Some students were testing the effects of force on the motion of a water bottle. They set up the experiment picture above and rolled the full water bottle down both ramps. What question were the students most likely trying to answer?

• A. How does mass affect the distance a full water bottle will roll?

• B. How does friction affect the distance a full water bottle will roll?

• C. How does the size of the water bottle affect the distance it rolls?

• D. How does ramp height affect the distance a full water bottle will roll?

Tags

NGSS.MS-PS2-2

10. A student investigating the effects of forces, measures the distance a ball can be pushed by air from a small fan. What is the variable (change) in this investigation?

• F. The mass of the balls being pushed by air.

• G. The length of the surface on which the balls roll.

• H. The amount of wind pushing the balls.

• J. The type of surface the balls are rolling on.

Tags

NGSS.MS-PS2-2

What measurements are needed to calculate the speed of an object?

• grams and force
• force and acceleration
• mass, time. and force
• time and distance

Tags

NGSS.MS-PS3-1

Melissa and Gabe were testing the flight of leaves as they tossed them in the air.  The leaves would go up and then came to a rest on the ground.  What force made the leaves land on the ground?

• gravity
• friction
• air pressure
• mass

Tags

NGSS.MS-PS2-4

The 5th graders were playing a game of tug-of-war.  The class was divided equally with half the class on one side of the rope and the other half on the opposite side.  For 5 minutes the students pulled and pulled but neither side could pull the flag to one side or the other.  Choose the description of the forces during the 5th grade tug-of-war.

• The forces were unbalanced in the game.
• The forces were friction, gravity, and chemical energy.
• The students all had the same amount of strength.
• The forces were balanced in the game.

Tags

NGSS.3-PS2-1