Test Review Velocity, Acceleration, Freefall

A man drops his camera off of the top of the oil derrick tower at Six Flags. Which of the following kinematic equations would he use in order to calculate the speed the camera was travelling when it hit the ground?

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Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-4

NGSS.MS-PS3-5

Juan is standing on the top observation deck of the Eiffel Tower in Paris at a height of 300 meters. He drops his cell phone. How fast will the phone be traveling when it hits the ground? Ignore the effect of air resistance.

• -9.8 m/s

• -76.68 m/s

• -149.76 m/s

• -46.99 m/s

If an object is in free fall for three seconds, how fast will it be falling?

• -9.8 m/s

• -19.6 m/s

• -29.4 m/s

• -39.2 m/s

Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?

• the feather
• the metal bolt
• They would hit the ground at the same time.
• They would be suspended in a vacuum.

Tags

NGSS.HS-PS2-4

A pumpkin is dropped from a 35 m building. What is its initial velocity (v_i)?

• 9.8 m/s²
• 35 m
• 0 m/s
• 9.8 m/s

Tags

NGSS.HS-PS2-4

Colin skateboards down the sidewalk in front of the school, traveling at 24 km/h. How much time would it take him to travel 6.0 km?

• 0.25 h

• 0.4 h

• 5.4 h

• 12 h

Andrew and Jennifer are in a 3-legged race at Fall Fair. How far could they run if they ran 0.36 km/min for 5 min?

• 42.9 km

• 1.8 km

• 2.0 km

• 0.2 km

Sharis decides to be brave and go skydiving. If she accelerates at 9.81 m/s² (m/s² = m/s/s) for 4.9 s, what would her speed be at that time?

• -48.1 m/s

• -0.6 m/s

• -0.0015 m/s

• -7.1 m/s

A little freshman moves down the hall at 3.2 m/s. When he sees Luke coming, he slows down. After 3.2 s, he is moving at 1.2 m/s. What is his acceleration?

• -0.25 m/s²

• -42.9 m/s²

• -0.625 m/s²

• -12 m/s²

Tags

NGSS.HS-PS2-1

Kendra is coming home late, past her curfew. As she sneaks quietly into her house trying not to wake up her parents, she slinks up the stairs moving 10.7 m in 26.8 s. Find her speed.

• 0.4 m/s

• 2.0 m/s

• 7.1 m/s

• 10.2 m/s