Worksheetsphysical science midterm
Total questions: 52
Worksheet time: 43mins
As distance between two objects increase, the pull of gravity
Increases
Decreases
Stays the same
Motion is the result of ____ force
balanced
no
unbalanced
An object at rest will remain at rest unless acted upon by an unbalanced force. Likewise an object in motion will remain in motion unless acted upon by an unbalanced force.
Newton's 2nd law
Newton's 3rd law
Fig Newton's law
Newton's 1st law
force is measured in units called
kilograms
newtons
joules
m/s/s
This variable represents the rate at which displacement changes with respect to time.
speed
velocity
viscosity
none of the above
This is the unit that we use to describe acceleration
speed
m/s/s
distance
none
Mass is different than weight because __________.
Weight is the amount of matter, mass is the effect of gravity on the amount of matter.
Mass is the amount of matter, weight is the effect of gravity on the amount of matter.
Mass is the amount of weight, weight is the effect of gravity on the amount of matter.
Weight is the amount of matter, weight is the effect of gravity on the amount of matter.
____________ is the change in velocity divided by the time needed for the change to occur.
average velocity
speed
acceleration
displacement
Average speed is found by ________
multiplying total distance traveled by total time
multiplying the displacement by the total time spent
dividing the displacement by the total time spent
dividing total distance traveled by the total time
__________ is the speed of an object at any instant of time.
acceleration
average speed
instantaneous speed
velocity
The distance between your starting position and your final position is called _________
acceleration
differential
displacement
velocity
At 8 AM you leave home and walk 0.5 km to a friend's house. At 11:30 AM you return home, then travel by car to the mall, which is 10 km away, and arrive at 11:45 AM. What is the total distance traveled?
10 km
11 km
10.5 km
2.8 km/h
A net force of 2500 N acts on an African male elephant with a mass of 7000 kg. How large is the acceleration of the African male elephant?
0.22 m/s2
0.25 m/s2
0.30 m/s2
0.36 m/s2
A bowling ball with a mass of 7.3 kg has a net force of 1.5 N acting on it. How large is the bowling ball's acceleration?
0.21 m/s2
0.25 m/s2
0.55 m/s2
1.25 m/s2
Calculate the momentum of a 16 kg bicycle traveling north at 3 m/s.
24 kg m/s
36 kg m/s
42 kg m/s
48 kg m/s
Calculate the momentum of a 12 kg bicycle traveling at 2 m/s east.
24 kg m/s
28 kg m/s
30 kg m/s
36 kg m/s
3 m/s is an example of a(n) _________.
speed
velocity
position
acceleration
The relationship among speed, distance and time is _____.
t=s/d
d=t/s
s=dt
s=d/t
A merry-go-round horse moves at a constant speed but a changing _____.
velocity
balanced force
unbalanced force
inertia
The equation used to find acceleration is a= __________
vf -vi/t
v/t
vi-vf/t
vi + vf/t
The upward force on an object falling through the air is ___________.
air resistance
inertia
momentum
terminal velocity
A feather will fall through the air more slowly than a brick because of ________.
air resistance
inertia
momentum
gravity
In the absence of air, a penny and a feather that are dropped from the same height at the same time will _______.
fall at different rates
fall at the same rate
float
not have momentum
For any object, the greater the force that's applied to it, the greater its ______________ will be.
acceleration
gravity
inertia
velocity
The size of the gravitational force between two objects depends on their _______.
frictional forces
inertia
masses and the distance between them
speed and direction
