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WorksheetsPhysics midterm
Total questions: 20
Worksheet time: 32mins
What is a vector?
a quantity that has both magnitude and direction
a quantity that only has direction
a quantity that only has magnitude
Which diagram best shows person pushing a couch (accelerating) across the floor?
The down-arrow in this diagram is most-likely:
gravity
normal
a push or pull
friction
What does the solid line on this graph represent?
Constant speed
Acceleration
At rest
deceleration
What is the line on this graph showing?
moving away from starting point at a constant speed
moving back towards the starting point at a constant speed
acceleration (getting faster)
deceleration (getting slower)
What happens to the velocity of a ball as it is dropped off a cliff?
It decreases at a uniform rate
It increases at a uniform rate
It is constant
A policeman traveling 19.5 m/s spots a speeder ahead, so he accelerates his vehicle at a steady rate of 1.81 m/s2 for 3.2 s, at which time he catches up with the speeder. What distance does the police car cover in that time?
d = vit + ½ at2
35.98 m
56.32 m
71.67 m
What is the velocity during the time interval t = 0 s to t = 2 s
6 m/s
3 m/s
2.5 m/s
In the Velocity - time graph, which time interval(s) is the object moving at constant speed?
0 to 3 seconds
3 to 5 seconds
5 to 11 seconds
11 to 14 seconds
The slope on a velocity - time graph represents the objects...
speed
position
acceleration
time
the units (m/s2) are used for which quantity?
position
speed
velocity
acceleration
A 16 kg dog on a skateboard is pushed hard enough to be accelerated 2 m/s2. Which equation should you use to find the net force?
F=ma
v = vo + at
x = xo + vot + (1/2)at2
If an object is spinning around on a string and the string was suddenly cut, the object would move in a
curved path
straight line
What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?
5 m/s2
17.63 m/s2
10 m/s2
8.81 m/s2
Determine the components of the vector: magnitude= 12 and direction= 125º
x = -9.9 y = 6.9
x = 9.9 y = -6.9
x = -6.9 y = 9.8
x = 6.9 y = -9.8
