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WorksheetsChapter 7 Motion
Total questions: 20
Worksheet time: 9mins
Which of the following is the best refernce point for describing the motion of the planets in our solar system
a space ship in orbit around the Earth
the center of the Milky Way
Earth
Sun
The rate at which velocity changes is
acceleration
speed
direction
velocity
What is an object that appears to stay in place and that helps you detect motion in another object
a newton
a black hole
a reference point
a map
To calculate an object's average acceleration, you need to know
starting velocity, distance traveled and speed
starting point, endpoint and the object's mass
starting velocity, final velocity, and time it takes to change velocity
average speed, distance, and the time it takes to change velocity
Dividing the total distance traveled by the total time is how to calculate
average speed
average velocity
average acceleration
average motion
The difference between speed and velocity is that
velocity involves time while speed does not
speed involves time while velocity does not
velocity has direction while speed does not
speed has a direction while velocity does not
A hiker's velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
The direction changed
The direction was unchanged
The speed increased
The speed decreased
In which of the following is a skater NOT accelerating
going straight while speeding up
going straight at a constant speed
making circles at a constant speed
going straight while slowing down
If a student rides her bike on a straight road and does not speed up or slow down, she is traveling with a
constant acceleration
constant velocity
positive acceleration
negative accleration
Which of the following is a measurement of velocity
16 m east
25m/s2
55 m/h south
60 kn/h
What type of unit is 30m/s
speed
velocity
acceleration
What type of unit is 12 cm/s2
speed
velocity
acceleration
What type of unit is 3 km/hr/sec
speed
velocity
acceleration
What type of unit is 54 m/s downward
speed
velocity
acceleration
What is the SI unit for speed?
mi/hr
km/hr
m/sec
m/min
A train is slowing down, it is accelerating.
true
false
A Ferris wheen turning at a constant speed of 5 m/s is NOT accelerating
true
false
To find the acceleration of an object moving in a straight line, you must calculate the change in distance for each unit of time.
True
False
A speed-versus-time graph for a car's motion is a horizontal line at a speed of 12m/s. The car's accleration during this time is 12m/s2.
true
false
On a distance versus time graph, a speed of zero would appear as a horizontal line
True
False
