7th physical science review

Which of the following situations could be represented by this graph?

• A student walks 1.5 km to a friend’s house in 40 minutes. The two students then walk another 1.5 km to school in 20 minutes.

• A student walks 1.5 km to a friend’s house in 20 minutes. The two students then walk another 1.5 km to school in 40 minutes.

• A student walks 1.5 km to a friend’s house in 30 minutes. The two students then walk another 1.5 km to school in 30 minutes.

• A student walks 1.5 km to a friend’s house in 20 minutes. The two students then walk another 1.5 km to school in 60 minutes.

A bowling ball was released, and the distance it rolled was measured at the end of 5, 10, and 15 seconds. The data table below shows the data recorded from the experiment.

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Tags

NGSS.MS-PS3-1

The diagram below shows a boat moving north in a river at 3 m/s while the current in the river moves south at 1 m/s. How will the boat be affected if it enters a part of the river where the current is moving south at 2 m/s?

• The boat will move slower.

• The boat will move faster.

• The boat will stop.

• The boat will move to the west.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In which of the following sections of track will the sled experience an unbalanced force?

• Sections 1 and 3

• Sections 2 and 3

• Sections 2 and 4

• Sections 3 and 4

Tags

NGSS.MS-PS2-2

At what speed was object A moving?

• 10 km/hour

• 20 km/hour

• 1 km/hour

• 2 km/hour

Tags

NGSS.MS-PS3-1

This morning, Jason’s school bus ran out of gas halfway through the bus route. They had to wait for someone to bring gasoline before the bus driver could continue her route. In science class, Jason’s teacher, Ms. Amos, asked her students to create a graph showing the bus when it was in a stationary position. Which student(s) have created a graph reflecting the correct data?

• Joe, Ty and Gwen have created graphs showing the bus in a stationary position.

• Eli and Jose have created graphs showing the bus in a stationary position.

• Joe has created a graph showing the bus in a stationary position.

• Gwen has created a graph showing the bus in a stationary position.

At which of these positions does the ball have both the greatest kinetic energy and the least potential energy?

• Position 1

• Position 2

• Position 3

• Position 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which of the following statements best explains the position of the basketball in each of the four positions?

• Positions B and C show the basketball when it has kinetic energy.

• Positions C and D show the basketball when it has kinetic energy. Positions A and B show the basketball when it has potential energy.

• Positions A and D show the basketball when it has potential energy. Positions B and C show the basketball when it has kinetic energy.

• Positions A and C show the basketball when it has potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which of the following is an example of work being done?

• A student is sitting in a chair and holding both boxes.

• A student is holding the larger box one meter above the ground.

• A student is standing and holding the smaller box.

• A student is lifting the smaller box 1.5 meters from the floor to a table.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Use the diagram below to answer the question.

• mechanical energy

• electromagnetic energy

• thermal energy

• electrical energy