3.6b

• A

• B

• C

• D

Tags

NGSS.MS-PS2-3

A student rolled an iron ball down a ramp with a strong magnet near the bottom. Which of the arrows shows the path the ball will most likely follow?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

Which word describes a push or pull on an object?

• Position

• Hypothesis

• Mass

• Force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which experiment listed below will best determine how friction affects the speed of a rolling object?

• Roll 3 objects of various sizes across the floor.

• Roll 3 objects of equal size from various heights across the floor.

• Roll 3 objects of equal size across 3 different types of surfaces.

• Roll 3 objects of equal size from equal heights across the floor.

The location of an object.

• Speed

• Position

• Friction

• Gravity

A polar bear slides down an ice covered hill. As he slides, he slows down. Eventually he comes to a stop. What force acts on an object to slow or stop its motion?

• Speed

• Friction

• Gravity

• Direction

When designing an experiment, why is it important to test only one variable?

• Testing one variable explains what  caused the change once data has been gathered.

• Testing one variable collects inaccurate data and repeats the investigation more than necessary.

• Testing one variable decreases the reliability of the investigation.

• It is not necessary to test only one variable.

Looking at the picture, what two tools would be needed to measure the effect of friction on the ball?

• Hand lens and balance

• Balance and spring scale

• Measuring tape and stop watch

• Spring scale and hand lens

A student drops a ball from shoulder height. The ball bounces 5 times before coming to a stop. What force causes the ball to fall to the ground?

• Friction

• Magnetism

• Position

• Gravity

Tags

NGSS.MS-PS2-4

A boy applies a pushing force on a ball thrown into the air. What applies a pulling force on the ball at the same time?

• Gravity

• The height of the boy

• Friction

• The mass of the ball

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4