PHYSICS EXAM WITH 100% CORRECT
ANSWERS { GRADED A+}
Kinematics can answer all of the following questions EXCEPT - ✔✔Why does a
baseball drop to the ground down after being thrown?
The term kinematics refers to - ✔✔The study of motion
In Latin, the suffix -ics means - ✔✔The study of
What aspect of kinematics would you need to use time to determine? - ✔✔The
speed of an object
In Greek, Kinemat- means - ✔✔Motion
Which of the following is considered a vector quantity? - ✔✔55 kilometers per
hour north
Which of the following would be considered a scalar quantity? - ✔✔212 degrees
Celsius
,A vector is - ✔✔A quantity containing a magnitude and a direction
Scalar is - ✔✔A quantity that does not involve direction
A speed limit sign along a highway in Montana says 70 mph. This information on
this sign is an example of - ✔✔A scalar quantity
Displacement is - ✔✔Represented by delta s
Not dependent on measuring the length of the exact path taken by an object
How far an object has moved with respect to its initial and final position,
regardless of path taken
A vector quantity, requiring both magnitude and direction
Distance is - ✔✔How much ground was covered regardless of starting and ending
position
A runner competes in the 400 meter dash and finishes with a time of 64 seconds. If
the track is a perfect oval, with the starting line and finish line at the same point,
and the runner's average speed was 6.25 meters/second, what was the total distance
travelled by the runner? - ✔✔400 meters
Average Velocity - ✔✔Is total displacement / total time
,Average speed is - ✔✔How much distance is covered over a specific period of
time, regardless of direction
Which if the following statements is TRUE? - ✔✔It is possible for an object to
move with a constant speed but not a constant velocity
Acceleration is - ✔✔The rate of change of an object's velocity
A car traveling 89 m/s east slams on its breaks. The car stops after 12 seconds of
breaking. What is the average acceleration of the car? - ✔✔- 7.4 m/s^2 east
Which of the following objects is accelerating? - ✔✔A car driving around a
circular track with a constant speed of 100 km/h.
Average acceleration is determined by - ✔✔Change in velocity / change in time
An 80 lb cheetah jogging left at 15 m/s suddenly accelerates to 30 m/s. The
cheetah crosses about 45 meters of savannah and needs 2 seconds to reach 30 m/s.
What was the cheetah's acceleration? - ✔✔7.5 m/s^2 left
According to Newton's first law of motion, what would happen to a car traveling
west at a constant velocity of 55 MPH in the absence of an unbalanced force? -
✔✔The car would continue moving west with a velocity of 55 MPH
, Which of the following explanations are accurate and apply to Newton's first law
of motion? - ✔✔If a force is applied to an object at rest, it will move
An object at rest remains at rest unless acted upon by an external force
If a force is applied to an object in motion, it will change its velocity
an object in motion tends to maintain the same velocity unless acted upon by an
external force
Consider a satellite orbiting the earth at 17,500 MPH. What would happen to a
rock released from the satellite? - ✔✔The rock would orbit the earth at a velocity
of 17,500 MPH next to the satellite
What is responsible for keeping an object at rest or maintaining an object's constant
velocity? - ✔✔balanced forces
Imagine you are carrying a pan filled with water around a track. Which of the
following is the best explanation of what happens to the water as you take a left
turn holding the water in front of you? - ✔✔The water will tend to remain
traveling forward. However, as the pan moves to the left, the water will appear to
splash out to the right.
ANSWERS { GRADED A+}
Kinematics can answer all of the following questions EXCEPT - ✔✔Why does a
baseball drop to the ground down after being thrown?
The term kinematics refers to - ✔✔The study of motion
In Latin, the suffix -ics means - ✔✔The study of
What aspect of kinematics would you need to use time to determine? - ✔✔The
speed of an object
In Greek, Kinemat- means - ✔✔Motion
Which of the following is considered a vector quantity? - ✔✔55 kilometers per
hour north
Which of the following would be considered a scalar quantity? - ✔✔212 degrees
Celsius
,A vector is - ✔✔A quantity containing a magnitude and a direction
Scalar is - ✔✔A quantity that does not involve direction
A speed limit sign along a highway in Montana says 70 mph. This information on
this sign is an example of - ✔✔A scalar quantity
Displacement is - ✔✔Represented by delta s
Not dependent on measuring the length of the exact path taken by an object
How far an object has moved with respect to its initial and final position,
regardless of path taken
A vector quantity, requiring both magnitude and direction
Distance is - ✔✔How much ground was covered regardless of starting and ending
position
A runner competes in the 400 meter dash and finishes with a time of 64 seconds. If
the track is a perfect oval, with the starting line and finish line at the same point,
and the runner's average speed was 6.25 meters/second, what was the total distance
travelled by the runner? - ✔✔400 meters
Average Velocity - ✔✔Is total displacement / total time
,Average speed is - ✔✔How much distance is covered over a specific period of
time, regardless of direction
Which if the following statements is TRUE? - ✔✔It is possible for an object to
move with a constant speed but not a constant velocity
Acceleration is - ✔✔The rate of change of an object's velocity
A car traveling 89 m/s east slams on its breaks. The car stops after 12 seconds of
breaking. What is the average acceleration of the car? - ✔✔- 7.4 m/s^2 east
Which of the following objects is accelerating? - ✔✔A car driving around a
circular track with a constant speed of 100 km/h.
Average acceleration is determined by - ✔✔Change in velocity / change in time
An 80 lb cheetah jogging left at 15 m/s suddenly accelerates to 30 m/s. The
cheetah crosses about 45 meters of savannah and needs 2 seconds to reach 30 m/s.
What was the cheetah's acceleration? - ✔✔7.5 m/s^2 left
According to Newton's first law of motion, what would happen to a car traveling
west at a constant velocity of 55 MPH in the absence of an unbalanced force? -
✔✔The car would continue moving west with a velocity of 55 MPH
, Which of the following explanations are accurate and apply to Newton's first law
of motion? - ✔✔If a force is applied to an object at rest, it will move
An object at rest remains at rest unless acted upon by an external force
If a force is applied to an object in motion, it will change its velocity
an object in motion tends to maintain the same velocity unless acted upon by an
external force
Consider a satellite orbiting the earth at 17,500 MPH. What would happen to a
rock released from the satellite? - ✔✔The rock would orbit the earth at a velocity
of 17,500 MPH next to the satellite
What is responsible for keeping an object at rest or maintaining an object's constant
velocity? - ✔✔balanced forces
Imagine you are carrying a pan filled with water around a track. Which of the
following is the best explanation of what happens to the water as you take a left
turn holding the water in front of you? - ✔✔The water will tend to remain
traveling forward. However, as the pan moves to the left, the water will appear to
splash out to the right.
