Science

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

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NGSS.MS-PS3-1

What is the formula to calculate speed?

• Speed = time/distance
• Speed = distance/time
• Speed = distance x time
• Speed = time x distance

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

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NGSS.HS-PS2-1

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

A measurement of how fast an object is moving

• Velocity
• Speed
• Vector
• Acceleration

A description of the speed and direction of an object's motion

• Velocity
• Speed
• Acceleration
• Vector

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction

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NGSS.HS-PS2-1

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

Acceleration only takes place when things speed up. 

• True
• False

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NGSS.HS-PS2-1

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

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NGSS.HS-PS2-1