Unit 1 Kinematics

Multiple Choice

What is the difference between distance and displacement?

• Distance is the total path length traveled, while displacement is the change in position.

• Distance is the change in position, while displacement is the total path length traveled.

• Distance and displacement are the same thing.

• Distance is always greater than displacement.

Multiple Choice

A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south.  What is the magnitude and direction  of the car's resultant displacement?  

• 40 metres, South
• 50 metres, South
• 50 metres, North
• 40 metres, North 

Multiple Choice

If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?

• 20m
• 40m
• 0m
• -20m

Multiple Choice

After completing one trip on a roller coaster, the roller coaster's ________ is zero.

• displacement
• reference point
• length
• distance

Multiple Choice

A skier moves from point A to point B, then moves backwards to point C, before travelling forwards again to point D. What is her displacement? (ignore the time listed)

• 40m

• 100m

• 140m

• 420m

Multiple Choice

What is the overall displacement when displacements take place at right angles to each other?

• 5 m

• 10 m

• 11 m

• 15 m

Multiple Choice

A student drives his car 6.0 km North, then 6.0 km to the East. Finally, 2.0 km to the north. What is the magnitude of the overall displacement of the student?

• 14 km

• 8.4 km

• 10 km

• 7.2 km

Multiple Choice

Which is an example of VELOCITY?

• A dog running at 3 m/s
• A deer sprinting at 4 m/s
• A migrating bird headed south for the winter at 3 m/s
• A person not moving at all

Multiple Choice

What is frame of reference?

• How fast an object's position changes over time.
• A group of objects from which you can measure the position or motion.
• A change in position over time.
• The location of an object.

Multiple Select

Two cars are travelling at 10 m/s, in different directions. Select the sentences that are true.

• Their speeds are the same.

• Their speeds are different.

• Their velocities are the same.

• Their velocities are different.

Multiple Choice

What is the definition of speed?

• Distance/Time
• Change in velocity/Time
• A change in momentum

Multiple Choice

How is velocity different than speed?

• Speed opposes velocity
• Velocity is speed with a direction
• None of the answers are correct

Multiple Choice

Which is an example of VELOCITY?

• A dog running at 3 m/s
• A deer sprinting at 4 m/s
• A migrating bird headed south for the winter at 3 m/s
• A person not moving at all

Multiple Choice

Calculate the speed:
A Car traveled 240 Km in 5 Hours

• 48 Km/Hr
• 1200 Km/Hr
• 4.8 Km/Hr
• 0.02 Km/Hr

Multiple Choice

This is a velocity-time graph.  What is the object doing in segment C?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Multiple Choice

Calculate the acceleration for segment A.

• 2 m/s²
• 20 m/s²
• -2 m/s²
• 0 m/s²

Multiple Choice

This is a velocity-time graph.  What is the object doing in segment A?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Multiple Choice

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Multiple Choice

During which interval is the object not moving?

• B to C
• C to D
• D to E
• only at point A

Multiple Choice

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Multiple Choice

A car is travelling East (+ x direction) and is slowing down to a stop. What direction does acceleration point?

• East
• West
• Up
• Backwards

Multiple Choice

A stone is dropped from a height of 45 m. How long does it take to reach the ground? (Assume $$g = 9.8 \, \text{m/s}^2$$ )

• 2 s

• 3 s

• 4 s

• 5 s

Multiple Choice

A ball is thrown vertically upwards with an initial velocity of 20 m/s. What is the maximum height it reaches? (Assume $$g = 9.8 \, \text{m/s}^2$$ )

• 10.2 m

• 20.4 m

• 30.6 m

• 40.8 m

Multiple Choice

At what point is v_y= 0 m/s?

• A

• B

• C

• D

• None of these points

Multiple Choice

A ball is thrown upwards with a velocity of 15 m/s. How long does it take to reach its highest point? (Assume $$g = 9.8 \, \text{m/s}^2$$ )

• 1.5 s

• 2 s

• 2.5 s

• 3 s

Multiple Choice

A ball is dropped from a height of 20 meters. Which kinematic equation would you use to find the time it takes to hit the ground?

• $$vf=vi+at$$

• $$\Delta x=vit+\frac{1}{2}at^2$$

• $$vf^2=vi^2+2a\Delta x$$

• $$\Delta x=\frac{vi+vf}{2}t$$

Multiple Choice

A rock is dropped from a cliff and hits the ground after 4 seconds. Which kinematic equation would you use to find the height of the cliff?

• $$vf=vi+at$$

• $$\Delta x=vit+\frac{1}{2}at^2$$

• $$vf^2=vi^2+2a\Delta x$$

• $$\Delta x=\frac{vi+vf}{2}t$$

Multiple Choice

A stone is thrown vertically upward with a velocity of 20 m/s. How would you determine the time taken to reach the highest point?

• $$vf=vi+at$$

• $$\Delta x=vit+\frac{1}{2}at^2$$

• $$vf^2=vi^2+2a\Delta x$$

• $$\Delta x=\frac{vi+vf}{2}t$$

Multiple Choice

A ball is thrown downward with an initial velocity of 5 m/s from a height of 45 meters. Which kinematic equation would you use to find the velocity just before it hits the ground?

• $$vf=vi+at$$

• $$\Delta x=vit+\frac{1}{2}at^2$$

• $$vf^2=vi^2+2a\Delta x$$

• $$\Delta x=\frac{vi+vf}{2}t$$

Multiple Choice

An object is thrown upwards with an initial velocity of 15 m/s. Which equation would you use to determine the maximum height reached by the object?

• $$vf=vi+at$$ vviff

• $$\Delta x=vit+\frac{1}{2}at^2$$

• $$vf^2=vi^2+2a\Delta x$$

• $$\Delta x=\frac{vi+vf}{2}t$$

Multiple Choice

The more mass an object has, the faster it will fall.

• True
• False

Multiple Choice

Which of these dot diagrams represents a free falling object dropped from rest?

• A

• B

• C

• D