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- 1. Multiple Choice
Which vector represents the acceleration of the ball?
ABCD - 2. Multiple Choice
Which of the following vectors depicts the velocity of the bowling ball?
ABCD - 3. Multiple ChoiceAs a ball rolls across a table it has a constant horizontal velocity. When the ball rolls off the table the horizontal velocity...Stays the sameAccelerates at -9.8 m/s2Accelerates at an unknown valueBecomes zero
- 4. Multiple Choice
A marble traveling at 3 m/s rolls off the edge of a 1 m high table. What is its initial vertical speed?
-10 m/s
0 m/s
-3 m/s
-15 m/s
- 5. Multiple ChoiceAt the instant a ball is thrown horizontally with a large force, an identical ball is dropped from the same height. Which ball hits the ground first?Neither- they hit at the same timethe horizontally thrown ballthe dropped ballNone of these
- 6. Multiple ChoiceAs a projectile moves through the air, the motion on y axis is best described as ____,free fall accelerationuniform motionvarying speedsconstant velocity
- 7. Multiple Choice
Once a projectile is launched, what is the only force that affects its motion?
mass
friction
inertia
gravity
- 8. Multiple Choice
Two projectiles are fired horizontally with the same velocity but from different heights as shown in the picture. Which one will hit the ground first?
The one on the left.
The one on the right
They will hit at the same time.
Not enough information.
- 9. Multiple Choice
A box is dropped from an airplane. Neglecting air resistance, where will the box be in relation to the plane when the box hits the ground?
directly under the plane because it has the same Vx as the plane.
behind the plane because the box will drop straight down
in front of the plane because the plane will throw it forward
there is not enough information to tell
- 10. Multiple Choice
A package is dropped from an airplane, where will the package hit the ground?
A
B
C
- 11. Multiple Choice
Which best describes the horizontal motion of a projectile, assuming no air resistance?
Acceleration of -10 m/s2
Acceleration of -5 m/s2
An increasing acceleration every second
Constant velocity
- 12. Multiple Choice
Which best describes the vertical motion of a projectile, assuming no air resistance?
Acceleration of -10 m/s2
Accelerations of -5 m/s2
An increasing acceleration every second
Constant velocity
- 13. Multiple Choice
A projectile is launched from the top of a 4.5 m tower and lands 15 m away from the base of the tower. Find the horizontal velocity of the projectile.
11.1 m/s
15.8 m/s
16.3 m/s
32.7 m/s
- 14. Multiple Choice
What is true about the vertical velocity of a projectile launched horizontally?
It is initially at its maximum value.
It increases due to gravity as it falls.
It remains constant throughout its trajectory.
It decreases as it falls due to gravity.
- 15. Multiple Choice
What is the only force acting on a projectile?
air resistance
gravity
launch force
launch speed
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