1-D Motion Quiz 2

The change in an object's position, or the distance between the start and end points, is best described as:

• Distance
• Displacement
• Speed
• Velocity

If you describe how fast something is going and the direction it is going in, you are describing the:

• Distance
• Displacement
• Speed
• Velocity

Which of these is SCALAR?

• 
  Displacement
• Speed
• Velocity
• Acceleration

Ramos runs around a football field. He runs 300 m around the entire field ONCE. If he starts and ends up at the northwest corner of the field, determine his distance and displacement.

• Distance = 0 m, Displacement = 0 m
• Distance = 300 m, Displacement = 0 m
• Distance = 0 m, Displacement = 300 m
• Distance = 300 m, Displacement = 300 m

Dr. Suarez walks 2.8 km north to get to an observation post, then walks 5.1 km south back to her outpost. Determine her displacement.

• 2.3 km South
• 2.3 km North
• 7.9 km South
• 7.9 km North

Scottie the Chihuahua runs back and forth between his food bowl and his doghouse, which are 10 m apart. If he runs three complete laps from his bowl to the doghouse and back again in 12 seconds, determine his speed.

• 0 m/s
• 5 m/s
• 10 m/s
• 12 m/s

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NGSS.MS-PS3-1

Irene and Sanjay are racing on ice skates. Irene skated 30 m in 8 seconds, and Sanjay 18 m in 4 seconds. Determine the faster skater, and their speed.

• Sanjay - 4.50 m/s
• Sanjay - 3.75 m/s
• Irene - 4.50 m/s
• Irene - 3.75 m/s

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NGSS.MS-PS3-1

A Ferrari is at rest, but in 5 seconds it could be moving at 80 m/s. Determine its acceleration.

• +4 m/s²
• +8 m/s²
• +12 m/s²
• +16 m/s²

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NGSS.HS-PS2-1

A sailboat moving at 3 km/hr east speeds up, so that it is moving at 5 km/hr east, in 4 seconds. Determine its acceleration.

• 0.5 m/s² east
• 1.0 m/s² east
• 1.5 m/s² east
• 2.0 m/s² east

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NGSS.HS-PS2-1

A northbound bicyclist must stop for a red light. The bicyclist has an acceleration with which direction?

• north
• south

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NGSS.HS-PS2-1