Projectile Motion Review

In projectile motion, the final horizontal velocity is always equal to:

0 m/s

-9.8 m

/s

The initi

al ho...

None of t

he ab...

0% 0%0%0%

1. 0 m/s2. -9.8 m/s3. The initial

horizontal velocity4. None of the above

In projectile motion, if an object is initially only moving horizontally, the initial vertical velocity is always equal to:

1 2 3 4

0% 0%0%0%

1. 0 m/s2. -9.8 m/s2

3. The final horizontal velocity

4. None of the above

In projectile motion, the vertical time is always equal to:

1 2 3 4

0% 0%0%0%

1. 0 s2. -9.8 s3. The horizontal

time4. None of the above

In projectile motion, the vertical displacement is always equal to:

0 m -9

.8 m

The horizonta

l...

Not e

nough in

f...

0% 0%0%0%

1. 0 m2. -9.8 m3. The horizontal

time4. Not enough

information

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the final vertical velocity.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the initial vertical acceleration.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the vertical velocity at the peak of its motion.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined

A shell is fired at a 30 degree angle upward off a cliff and lands 400m from the base of the cliff. Describe the vertical displacement.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined

If an object is fired at an angle, the initial vertical velocity is always equal to:

1 2 3. 4 5

0% 0% 0%0%0%

1. v(cos θ)2. v(sin θ)3. -9.8 4. The initial

horizontal velocity5. None of the above

If an object is fired from the ground at a velocity (v) at an angle and the ground is level, the vertical displacement will equal:

1 2 3 4

0% 0%0%0%

1. 0 m2. -9.8 m3. The horizontal

displacement4. None of the above

If an object is fired from the ground at an angle and the ground is level, the final vertical velocity will equal:

1 2 3. 4 5

0% 0% 0%0%0%

1. v(sin θ)2. v(cos θ)3. -9.8 4. -v(sin θ)5. None of the above

Acceleration due to gravity can be considered -9.8 m/s 2 when an object travels:

Upward

only

Downward

only

Horiz

ontal only

Eith

er up or d

own

None of t

he above

0% 0% 0%0%0%

1. Upward only2. Downward only3. Horizontal only4. Either up or down5. None of the above

If an object is fired horizontally off a cliff, the initial vertical velocity is:

0 m/s

9.8 m/s

-9.8 m

/s

Cannot be determ

ined

0% 0%0%0%

1. 0 m/s2. 9.8 m/s3. -9.8 m/s4. Cannot be

determined

If an object is fired horizontally off a cliff, the vertical acceleration is:

0 m/s

2

9.8 m/s2

-9.8 m

/s2

Cannot be determ

ined

0% 0%0%0%

1. 0 m/s2

2. 9.8 m/s2

3. -9.8 m/s2

4. Cannot be determined

If an object is fired horizontally off a cliff, the initial horizontal velocity is:

0 m/s

9.8 m/s

-9.8 m

/s

Not e

nough in

form

ation

0% 0%0%0%

1. 0 m/s2. 9.8 m/s3. -9.8 m/s4. Not enough

information

If an object is fired horizontally off a cliff, the final horizontal velocity is:

0 m/s

9.8 m/s

-9.8 m

/s

Same as t

he initial h

oriz...

Not e

nough in

form

ation

0% 0% 0%0%0%

1. 0 m/s2. 9.8 m/s3. -9.8 m/s4. Same as the initial

horizontal velocity5. Not enough

information

If an object is fired horizontally off a cliff, the horizontal acceleration is:

0 m/s

2

9.8 m/s2

-9.8 m

/s2

Cannot be determ

ined

0% 0%0%0%

1. 0 m/s2

2. 9.8 m/s2

3. -9.8 m/s2

4. Cannot be determined

When compared with the time for the vertical motion, the time for the horizontal motion is:

More

Less

The same

Not e

nough in

form

ation

0% 0%0%0%

1. More2. Less3. The same4. Not enough

information

What term represents the magnitude of a velocity vector?

Acceleration

Dist

ance

Disp

lacement

Speed

Momentu

m

0% 0% 0%0%0%

1. Acceleration2. Distance3. Displacement4. Speed5. Momentum

In order to find the height of a projectile, what must be done to the total time (assume symmetrical path)?

Multi

ply time by 2

Cut time in

half

Noth

ing

Not e

nough in

form

ation

0% 0%0%0%

1. Multiply time by 22. Cut time in half3. Nothing4. Not enough

information

A shell is fired at a 30 degree angle upward and hits 200m above the place it was shot on an adjacent mountain. Describe the final vertical velocity.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined

A shell is fired at a 30 degree angle upward and hits 200m above the place it was shot on an adjacent mountain. Describe the final horizontal velocity.

1 2 3 4

0% 0%0%0%

1. Positive2. Negative3. Zero4. Unable to be

determined