Physics Worksheet Linear Motion Section: Name:
Mr. Lin 1
1. Relative Motion:
a. All motion is _____________________________.
b. _________________________________________ is an arbitrary
coordinate system with reference to which the position or motion of
something is described or physical laws are formulated.
c. The laws of mechanics in both frames of reference are
completely equivalent if they move relative to
each other with a __________________________.
2. Distance and Displacement:
a. A distance (d) is a __________________ quantity. A distance
is
__________________________________________
_________________________________________.
Unit of distance: ___________________________.
b. A displacement (d) is a _______________ quantity. A
displacement represents
__________________________________________
_________________________________________.
Unit of displacement: ________________________.
3. Speed and Velocity:
a. A speed (v) is a _____________________ quantity. A speed
is
__________________________________________
_________________________________________.
b. Average speed () = ________________________. c. The speed (v)
at any instance of an object is called
_________________________________________,
and it is equal to the
_________________________________________.
Unit of speed: _____________________________.
d. ______________________: speed at any instance of an object is
constant.
e. The maximum speed limit on a highway system is
100 km/h. What is the distance traveled by a car moving
continuously at this speed for 2 hours?
f. If the polar bear runs at a speed of about 10 m/s,
how far will it travel in 10 minutes? g. An average tree sloth
moves with a speed of 0.5
m/s. How long does it take a sloth moving at this speed to
travel 20 m?
h. The longest stretch of straight railroad tracks
extends a distance of over 400 km without a curve. How long
would it take a train moving at a constant speed of 80 km/h to
travel this length of track?
i. The cheetah, the fastest of land animals, can run a
distance of 200 m in 6 s at its top speed. What is the cheetahs
top speed?
j. When a student see the lightening strikes a tree 2 km
away, he heard the thunder after 6 seconds. What was the speed
of sound, in meters per second, at that moment?
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