6.8ABCD

Two Great Snipe birds are migrating. Both birds have a mass of 100 grams and are flying at 90 kilometers per hour. Bird R is flying 2.0 km above the ground, and Bird Q is flying 2.5 km above the ground.

Based on the information above, which statement best describes the energy of the two birds?

• Bird Q and Bird R have the same kinetic energy and potential energy.

• Bird Q and Bird R have the same kinetic energy but different potential energy.

• Bird Q and Bird R have no kinetic energy but have the same potential energy.

• Bird Q and Bird R have the same potential energy but different kinetic energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS2-4

The energy related to the motion of an object is called —

• potential energy

• kinetic energy

• electrical energy

• chemical energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

According to the above diagram, at what point would the roller coaster car have the greatest potential energy?

• 3

• 4

• 5

• 6

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NGSS.MS-PS3-2

According to the above diagram, at what point would the roller coaster car have the greatest kinetic energy?

• 3

• 4

• 5

• 6

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

A rock that falls off a cliff represents both potential and kinetic energy. Which statement best represents the energy transformation involved in this scenario?

• As the potential energy decreases, the kinetic energy decreases.

• As the potential energy increases, the kinetic energy increases.

• As the potential energy decreases, the kinetic energy increases.

• As the potential energy increases, the kinetic energy stays the same.

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NGSS.MS-PS3-5

NGSS.MS-PS3-4

A student who was training for a cross country race jogged for 2.0 hours and covered a distance of 14.0 kilometers. What was the average speed of the student?

• 28.0 km/hr

• 7.0 km/hr

• 12.0 km/hr

• 0.14 km/hr

The diagram represents two students pushing and pulling an object in the same direction. Which statement best describes the result of the forces?

• The object will not move because the forces are not the same.

• The object will move in the direction of the combined forces.

• The lesser force applied is not enough to move the object.

• The combined forces on the object cancels each other out.

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NGSS.MS-PS2-2

A group of students were investigating the speed of a wind-up-toy. They performed three trials and recorded their data in the table below.

What was the average speed of the wind-up-toy during the three trials to the nearest hundredth of a cm/s?

• 11.17 cm/s

• 6.50 cm/s

• 19.50 cm/s

• 8.20 cm/s

Tags

NGSS.MS-PS3-1

During an investigation, students placed a toy car at the top of a ramp and recorded the distance and time at different intervals. The graph below is a record of their data. What is the average speed of the toy car in the investigation?

• 0.25 m/s

• 4.0 m/s

• 5.0 m/s

• 20 m/s

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NGSS.MS-PS3-1

The graph below shows the distance and time a cyclist traveled on a 4.0-hour ride. Which of the following statements is true based on the data graphed above?

• The average speed of the cyclist in the first two hours was 15.0 km/hr.

• The cyclist traveled at a constant speed throughout the ride.

• The fastest speed of the cyclist was in the last hour of the ride.

• Between the second and third hours of the ride, the cyclist traveled 30 km.

Tags

NGSS.MS-PS3-1