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WorksheetsUnit B Chapter 2 - Investigating Motion
Total questions: 25
Worksheet time: 13mins
If you walked at the rate of 14 km/hr, how far would you walk in 1/2 hour?
7 km
6 km
9 km
12 km
When you change your direction of movement, you affect your
speed
velocity
time
distance
The tendency of an object to stay still is called
gravity
acceleration
inertia
force
Forces always work
by themselves
in pairs
in lengthy repetitions
in new combinations
A measure of the force that gravity exerts on an object is
mass
friction
height
weight
A correct measure of velocity would be
300 m/hr
7,800 m/sec
40 km/hr north
6 km/min
A car is traveling at a velocity of 70 km/hr west. To have the same velocity, another car would have to travel at
the same speed
the same speed and in the same direction
a different speed but in the same direction
the same speed but in the opposite direction
If one force pushes forward, another force pushes
left
downward
backward
right
The rate that a car's velocity changes is its
speed
force
gravity
acceleration
A test car is traveling at a constant velocity of 90 km/hr west. Its acceleration is about
zero
half of the velocity
equal to the velocity
double the velocity
The effect of friction on moving objects is
to slow them down
to speed them up
zero
to add to the effect of inertia
You can pick up a piece of paper because of the friction produced by your
fingernails
palms of your hand
wrists
fingerprints
Bike riders can cause drag in all of the following ways EXCEPT
wearing loose clothing
sitting upright
tucking their heads down
keeping their arms and legs spread out
Two balls have the greatest attraction between them when they are
closest together
farthest apart
softest
prettiest
A falling object accelerates the closer it gets to Earth because of the force of
inertia
speed
gravity
friction
When you rub your hands together, friction makes them
cold
warm
sticky
dirty
A sled works best on which of these?
snow
dirt
gravel
grass
To reduce friction on the moving parts of a machine, you could add
brakes
gravel
oil
sand
The type of friction that helps a parachute float slowly to the Earth is
air resistance
inertia
gravity
streamlining
When you measure how far something travels in a certain amount of time, you measure its
mass
force
gravity
speed
A push or pull is an example of a
mass
force
speed
acceleration
The amount of matter an object has is its
mass
force
speed
acceleration
The rate at which velocity changes is
speed
gravity
acceleration
force
Friction caused by gas molecules hitting an object is
air resistance
acceleration
gravity
speed
If engineers want a car that reduces air resistance, they design a car that is
fast
streamlined
large
heavy
