Kinematics Theory
3 years ago
thephysicsgrove
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• Question 1
30 seconds
Q. The rate at which distance is covered is called speed.
True
False
• Question 2
30 seconds
Q. Average speed is defined as the time it takes for a trip divided by the distance.
True
False
• Question 3
30 seconds
Q. Velocity is different from speed in that velocity is speed in a given direction.
True
False
• Question 4
30 seconds
Q. A unit of velocity is the meter.
True
False
• Question 5
30 seconds
Q. The rate at which velocity changes with time is called acceleration.
True
False
• Question 6
30 seconds
Q. A unit of acceleration is meters per second.
True
False
• Question 7
30 seconds
Q. When a car rounds a corner at a constant speed, its acceleration is zero.
true
false
• Question 8
30 seconds
Q. Even though a car is slowing down, it is still accelerating, in the most general definition of acceleration.
True
False
• Question 9
30 seconds
Q. A ball is thrown into the air. At the highest point, the ball has zero velocity and zero acceleration.
True
False
• Question 10
30 seconds
Q. As a ball falls freely, the distance it falls each second is the same.
True
False
• Question 11
30 seconds
Q. Unless stated otherwise, when we discuss the speeds of things, we mean with respect to the center of the universe.
True
False
• Question 12
30 seconds
Q. When we discuss the motion of something, its motion is described relative to something else.
True
False
• Question 13
30 seconds
Q. Speed is
A measure of how fast something is moving
always measured in terms of a unit of distance divided by a unit of time
the distance covered per unit time
all of the above
• Question 14
30 seconds
Q. One possible unit of speed is
miles per hour
light years per century
kilometers per hour
all of the above
• Question 15
30 seconds
Q. Acceleration is defined as the CHANGE in
time it takes to move from one place to another place.
velocity of an object
distance divided by the time interval
velocity divided by the time interval
• Question 16
30 seconds
Q. Suppose you are in a car that is going around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is NOT true?
You and the car are accelerating.
• Question 17
30 seconds
Q.

A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, 6 meters again during the third second. It's acceleration is __ m/s2?

0

6

12

18

• Question 18
30 seconds
Q. A  car starts from rest and after  7 seconds it is moving at 42  m/s. What is the ’s average acceleration?
0.17
1.67
6
7
• Question 19
30 seconds
Q. As an object falls freely in a vacuum, its
velocity increases
acceleration increases
both a and b
none of the above
• Question 20
30 seconds
Q. In the absence of air resistance, objects fall at constant
speed
velocity
acceleration
all of the above
• Question 21
30 seconds
Q. A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be
less than the speed it had when thrown upwards.
more than the speed it had when thrown upwards.
the same as the speed it had when thrown upwards.
• Question 22
60 seconds
Q. Suppose an object is in free fall. Each second the object falls
the same distance as in the second before.
a larger distance than in the second before.
with the same instantaneous speed.
with the same average speed.
• Question 23
30 seconds
Q. If you drop a feather and a coin at the same time in a tube filled with air, which will reach the bottom of the tube first?
the feather
neither
the coin
• Question 24
30 seconds
Q. Consider drops of water leaking from a water faucet. As the drops fall they
remain at a relatively fixed distance from each other
get farther apart
get closer together
• Question 25
30 seconds
Q. If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by