FRICTION

Name

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Directions: Read the questions carefully then write the letter of the correct answer

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

1. Which of the following statements about friction is TRUE?

• A. Friction opposes motion of objects.
• B. Friction occurs between non-rubbing surfaces.
• C. Friction causes moving objects to move faster.
• D. Friction acts in a direction similar to the direction of an object’s motion.

2. Will it be easier for a person to push a table on a carpeted floor than on tiled floor?

• A. No, because the carpeted floor is rough, so friction is lesser.
• B. No, because the carpeted floor is rough, so friction is greater
• C. Yes, because the carpeted floor is smooth, so friction is lesser.
• D. Yes, because the carpeted floor is smooth, so friction is greater.

3. When can we say that friction on a floor is greater?

• A. If the floor is wet
• B. If the floor is tiled.
• C. If the floor is rough.
• D. If the floor is smooth.

4. Which force causes a rolling ball to stop after a few seconds?

• A. friction
• B. gravity
• C. magnetic
• D. motion

Tags

NGSS.MS-PS2-2

5. Why is difficult to move heavy objects on a rough surface?

• A. rough surface is slippery
• B. there is no friction on a rough surfaception 2
• C. there is lesser friction on a rough surface
• D. there is greater friction on a rough surface

6. When you are travelling along a road, how does the wet road affect friction?

• A. It increases friction.
• B. It decreases friction.
• C. It maintains friction.
• D. It increases and decreases friction.

7. Which of the following forces causes objects to slowdown and eventually stop?

• A. air resistance
• B. friction
• C. gravity
• D. magnetic

8. What is the direction of friction between a moving object and a surface?

• A. toward the direction of object’s motion
• B. similar to the direction of object’s motion
• C. opposite to the direction of object’s motion
• D. perpendicular to the direction of object’s motion