Kinematics Review 2

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s², what is its velocity after 2 s?

• 0 m/s
• 0.5 m/s
• 1 m/s
• 1.5 m/s

Tags

NGSS.HS-PS2-1

Choose the correct equation for this problem:

"Barry accelerates from rest at a rate of 3.6 m/s². How far did he run if his final speed is 16 m/s?"

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A ball is thrown straight up into the air at 20.0 m/s. What is its velocity at its highest point?

• 0 m/s

• -9.81 m/s

• 20 m/s

• -20 m/s

The slope of a velocity vs time graph is known as:

• acceleration

• velocity

• average speed

• displacement

A ball is thrown straight up into the air at 20.0 m/s. What is its velocity as it returns to its initial height?

• 0 m/s

• -9.81 m/s

• 20 m/s

• -20 m/s

Choose the correct equation for this problem:

"Gary drops a stone from the top of a cliff. He uses a stop watch to find the time of the fall to be 3.7 s. How far down did the stone fall?"

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Tags

NGSS.HS-PS2-1

What is the displacement of a ball that is thrown straight up to a height of 20 m, and then falls back to its initial height?

• 0 m

• 20 m

• 40 m

• -20 m

Choose the correct equation for this problem:

"Larry is jogging at a brisk 5 m/s. Suddenly, a bear! He speeds up to 9 m/s in 0.85 seconds. What was his acceleration?"

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Tags

NGSS.HS-PS2-1

A car accelerates at 2 m/s². Assuming the car starts from rest, how much time does it need to accelerate to a speed of 16 m/s?

• 4 s
• 8 s
• 16 s
• 1/16 s

Tags

NGSS.HS-PS2-1

A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 

• 4.20 m
• 52.5 m
• 105 m
• 158 m