Physics Fall Review

A dolphin swims at 1.85 km/hr. How far has the dolphin traveled after 0.6hr?

• 2.5 km

• 1.1 km

• 0.63 km

• 3.7 km

Which of the following is an example of projectile motion?

• a jet lifting off the runway

• a bullet being fired from a gun

• dropping an aluminum can into the recycling bin

• a space shuttle orbiting the Earth

A duck waddles 2.5 m east and 6.0 m north. What are the magnitude and direction of the duck's displacement with respect to its original position.

• 3.5 m at 19 degrees north of east

• 6.3 m at 67 degrees north of east

• 6.5 m at 72 degrees north of east

• 6.5 m at 67 degrees north of east

A tourist accidentally drops a camera from a 40 m high bridge. If g = 9.8 m/s^2 what is the camera's initial velocity?

• 9.8 m/s

• 0 m/s

• 9.8 m/s^2

• Can't be determined

A tourist accidentally drops a camera from a 40 m high bridge. If g = -9.8 m/s^2 , what is the vertical displacement of the camera?

• 40 m

• -40 m 

• Can't be determined

• -9.8  m/s^2

What is the formula to calculate speed?

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

Tags

NGSS.MS-PS3-1

What is velocity?

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

Tags

CCSS.HSF.LE.B.5

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

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

Tags

CCSS.8.EE.C.7B

• Green object is moving at a faster constant speed than Red

• Red object is moving at a faster constant speed than Green

• Green object is moving at a slower constant speed than Red

• Red object is moving 2 times faster than Green

Tags

NGSS.MS-PS3-1