9 Weeks Force and Motion Review

Which best describes the motion of Santa and his sleigh?

• Santa is moving downward with increasing speed.

• Santa is moving with constant speed to the right.

• Santa is moving with increasing speed to the left.

• Santa is moving upward with an increasing speed.

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NGSS.MS-PS2-4

Velocity is the speed of an object with a given

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NGSS.MS-PS3-1

Which statement describes the meteor's motion?

• It's velocity was 7.8 km/s Northward.

• It's acceleration was 468 km/s2.

• It's speed was 468 km/s northward.

• It's acceleration was 7.8 km/s2.

During which interval is the object speeding up?

• A to B
• B to C
• D to E
• E to F

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CCSS.8.EE.B.5

88 m/s north

• Speed
• Velocity
• Acceleration

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NGSS.MS-PS3-1

Deep Space 1 was a spacecraft powered by an engine that gave off xenon particles to change velocity.  It had a mass of 500 kg.  Which expression can be used to find the spacecraft's acceleration if its engine created a net force of 0.10 N?

• 0.10 N / 500 kg
• 500 kg x 0.10 N
• 500 kg / 0.10 N
• 500 kg + 0.10 N

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NGSS.MS-PS2-2

• Sections 1 and 3
• Sections 2 and 3
• Sections 2 and 4
• Sections 3 and 4

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NGSS.MS-PS2-2

• The car will move at a constant speed of 13 m/s.
• The speed of the car will not change.
• The speed of the car will increase.
• The speed of the car will decrease to 1 m/s.

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NGSS.MS-PS2-2

What is the difference between the velocity and the speed of an object?

• Velocity is the change in distance over time, while speed is the change in velocity over time.
• Velocity has a direction associated with it, while speed has no specific direction.
• Velocity has no direction associated with it, while speed has a specific direction. 
• Velocity is the change in speed over time, while speed is the change in distance over time.

Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?

• The car with the smaller mass will require less force to stop than the car with the larger mass
• The car with the larger mass will maintain its velocity while traveling down the hill.
• The car with the smaller mass will take longer to stop than the car with the larger mass
• The car with the larger mass will have less inertia than the car with the smaller mass.

Tags

NGSS.MS-PS2-2