Vectors
Distance &
Displacement
Displacement
Speed
Velocity & Acceleration
Acceleration Due to Gravity
100
TRUE of FALSE
A scalar and a vector both have magnitude, but only a scalar has direction as well.
FALSE
Only vectors have direction
100
Distance or Displacement
Which is a scalar quantity that refers to how much ground an object has covered during its motion.
Distance is a scalar quantity that refers to how much ground an object has covered during its motion.
Displacement is a vector quantity that refers to how far your ending point is from your starting point.
100
Speed or Velocity
Which is the ratio of displacement over time (can be + or -).
Velocity is the ratio of displacement over time (can be + or -).
Speed is the ratio of distance over time (always positive).
100
A horse gallops with a constant acceleration of 5 m/s2.
Which statement below is true?
A. The horse's velocity does not change.
B. The horse moves 5m every second.
C. The horse’s velocity increases 5m every second.
D. The horse’s velocity increases 5m/s every second.
D. The horse’s velocity increases 5m/s every second.
100
What is acceleration due to gravity? (include the units)
-9.8 m/s2
200
Which of the following are examples of negative directions?
A) Up E) Down
B) Left F) North
C) South G) East
D) Right H) West
E) Down
B) Left
C) South
H) West
200
A lion spots a baby zebra and sprints to the right.
After the lion ran 65 meters, he gets sad about eating a zebra and decides to head back moving 20 meters to the left.
What distance did the lion travel?
A) 45m
B) 25m
C) 85m
D) 90m
C) 85m
200
Which set of combinations would allow for an object to be traveling slowest, from the options that are presented.
An object travels:
A. A “long distance” in a “long amount of time.”
B. A “short distance” in a “short amount of time.”
C. A “short distance” in a “long amount of time.”
D. A “long distance” in a “short amount of time.”
C. A “short distance” in a “long amount of time.”
200
****NOT YOUR PICK****DOUBLE POINTS****
If someone is moving at a constant speed of 10 m/s, this means that the person:
A. Increases her speed by 10m every second
B. Decreases her speed by 10m every second
C. Moves with an acceleration of 10 m/s every second
D. Moves 10m every second
D. Moves 10m every second
200
****NOT YOUR PICK****DOUBLE POINTS****
If a dog has an acceleration of 5 m/s2 and it starts running from rest, what will it’s velocity be after 3 seconds?
A. 0 m/s
B. 5 m/s
C. 15 m/s
D. 20 m/s
C. 15 m/s
300
Is it a scalar or a vector?
A) 6 feet
B) 40 mph North
C) 75°F
D) 1000 Watts
E) -35 meters
A) 6 feet scalar
B) 40 mph North vector
C) 75°F scalar
D) 1000 Watts scalar
E) -35 meters vector
300
****NOT YOUR PICK****DOUBLE POINTS****
Using opposite, adjacent, and hypotenuse, what is the formula for the sine of an angle?
300
****NOT YOUR PICK****DOUBLE POINTS****
A lion spots a baby zebra and sprints to the right. After the lion ran 75 meters, he gets sad about eating a zebra and decides to head back moving 40 meters to the left.
What displacement did the lion travel?
A. 35 m left
B. 35 m right
C. 115 m right
D. 115 m left
B. 35 m right
300
Which of the following scenarios, is NOT an example of acceleration: (choose all that apply)
A. Speeding up
B. Slowing down
C. Cruising at 100 mi/hr
D. Making a U-turn at 5 mi/hr
E. Being at rest
C. Cruising at 100 mi/hr
E. Being at rest
300
A rock is dropped from a bridge, what is its velocity after 4 seconds?
-40 m/s
400
Jerry is pushing the box with a force of 70 Newtons.
Brennen is pushing on the box with a force of -40 Newtons.
From looking at the picture below, which figure is Jerry and which figure is Brennen?
Jerry Brennen
400
Which is the formula for speed and which is for velocity?
400
A car is moving at 60 mi/hr (miles per hour), if it continues moving at this speed for 3 hours, how far would it have traveled?
A. 0 miles
B. 20 miles
C. 60 miles
D. 180 miles
D. 180 miles
400
An object is recorded to have the motion depicted in the graph, what is the velocity of the object’s motion?
rise/run is 30/5 = 6 m/s
400
****NOT YOUR PICK****DOUBLE POINTS****
In which scenario does the car's speed increase? Decrease?
Increase A & D Decrease B & C
500
Explain how you can use Pythagorean Theorem to add 2 vectors.
You can treat the vectors as 2 sides of a right triangle (a and b) and use the formula c2 = a2 + b2 . Solving for c gives the length of the resultant vector.
Draw the vectors by connecting the head of the first to the tail of the second. Draw the resultant vector from the start to the end and use a protractor to measure the direction.
500
Can you drive your car in such a way that the distance it covers is greater than the magnitude of its displacement? Equal to? Less than? Explain.
Yes, distance can be greater than displacement, if you do not drive in a straight line.
Yes, distance can be equal to the magnitude of displacement, if you drive in a straight line.
No, impossible.
500
Cindy sees and ice cream truck and charges toward it to the right.
She runs 60 meters in 10 seconds.
What is her average speed in m/s?
6 m/s
500
The graph depicts the motion of a mouse.
What does each segment tell about the mouse's motion?
backward or forward & slow or fast or stopped
A forward slow
B stops
C forward fast
D stops
E backward
500
A ball is thrown straight up and you catch it at the same height that it is released.
Does it take more time to go up or to come down or does it take the same time for both?
When is it slowest? Fastest?
Same time going up as going down.
Slowest at the top where it stops in a moment and fastest when released upward and when it lands in your hand.