semester science exam

Students wanted to see if the distance a marble rolled down a ramp changed the force it had. They allowed a marble to roll down the ramp from different starting points and strike a second marble. To determine if the force of the rolling marble changed, what should the students measure?

• The mass of Marble #2 before and after being struck by Marble #1.

• The distance Marble #2 moves after being struck by Marble #1.

• The time it takes Marble #2 to move after being struck by Marble #1.

• The direction Marble #2 moves after being struck by Marble #1.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Some students wanted to find out if a tennis ball and a baseball dropped from the same height hit the ground at the same time. This investigation tests the effect of which of the following?

• Wind

• Friction

• Gravity

• Magnetism

Tags

NGSS.MS-PS2-4

Students taped a rubber band to a box of washers, then dragged the box across four different surfaces, using the rubber band. The students are using the distance the rubber band stretches to measure the amount of friction each surface exerts on the box. Based on the observations shown here, which surface had the greatest amount of friction?

• Surface A

• Surface B

• Surface C

• SurfaceD

Tags

NGSS.MS-PS2-2

Students conducted an investigation in which they measured the distance a toy car traveled after rolling down a ramp covered with sandpaper or wax paper. Which of these questions can the students answer by analyzing the results of their investigation?

• How does changing the height of a ramp affect the distance a toy car rolls?

• How does changing the surface of a ramp affect the distance a toy car rolls?

• How does mass affect the distance a toy car moves after rolling down a ramp?

• How does the design of a toy car affect its movement after rolling down a ramp?

Tags

NGSS.MS-PS2-2

A science class wanted to know if a golf ball and a table tennis ball would roll the same distance after rolling down a ramp. Which of the following shows a fair test of this idea?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

What characteristic do all renewable resources share?

• Produced by waste products of animals

• Form underground from dead organisms

• Allow energy to pass through them easily

• Replaced in a reasonably short time period

Which of the following is a renewable resource?

• Oil

• Coal

• Crops

• Natural gas

Which of the following is a nonrenewable resource?

• Water

• Oxygen

• Wood

• Oil

Which two choices are correct?

• 1. Lake - nonrenewable

  2. Petroleum - renewable

• 1. Water - renewable.

  2. Animals- nonrenewable

• 1. Corn oil - nonrenewable

  2. Petroleum - nonrenewable

• 1. Lake - renewable

  2. Corn oil - renewable

Which of the following groups only contains renewable resources?

• Petroleum, Coal, Oil

• Oil, Lumber, Cow

• Sheep, Water, Solar

• Solar, Nuclear, Natural Gas