Projectile Motion Review

What is the horizontal acceleration of a projectile?

• 0 m/s² throughout the flight

• 9.8 m/s² down throughout the flight

• 9.8 m/s² up on the way up, 9.8 m/s² down on the way down

• 9.8 m/s² down on the way up, 0 m/s² on the way down

Tags

NGSS.HS-PS2-1

A projectile is launched with a horizontal velocity of 20 m/s and an initial vertical velocity of 20 m/s. Which graph correctly shows the horizontal velocity of the projectile over time?

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

A ball rolls off the top of a table to the floor some distance from the table. Making the ball roll off twice as fast will:

• double the time of flight and double the distance.

• cut the time of flight in half and leave the distance the same.

• leave the time of flight the same and cut the distance in half.

• leave the time of flight the same and double the distance.

• double the time of flight and quadruple the distance.

Tags

NGSS.HS-PS2-1

• A

• B

• C

• D

A projectile is launched with a horizontal velocity of 20 m/s and an initial vertical velocity of 20 m/s. Which graph correctly shows the horizontal position of the projectile over time?

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In the picture, cannonball A was launched at 10 m/s at 60°, and B was launched at 18 m/s at 25°. The cannonball that hit the ground first was

• A, because it had less total velocity.

• B, because it had more total velocity.

• A, because it had less initial vertical velocity.

• B, because it had less initial vertical velocity.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A projectile is launched with a horizontal velocity of 20 m/s and an initial vertical velocity of 20 m/s. Which graph correctly shows the vertical velocity of the projectile over time?

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Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A soccer field is a rectangle 90 meters wide and 120 meters long. The coach asks players to run from one corner to the corner diagonally across. What is this distance?

• 210 m
• 180 m
• 150 m
• 79 m

An object is shot directly upward from the ground. T₁ represents the time it takes to reach the maximum height. T₂ represents the time it takes to travel from the maximum height to the ground.

• T1 = T2
• T1 < T2
• T1 > T2
• unable to determine

Tags

NGSS.HS-PS2-1

Find the length of the missing side. 

• 17 cm
• 22 cm
• 15 cm
• 13 cm