WorksheetsPhysical Science Midterm Review 1
Total questions: 30
Worksheet time: 16mins
Motion is a change in
time.
speed.
velocity.
position.
The speed you read on a speedometer is _____.
instantaneous speed.
constant speed.
average speed.
velocity.
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
Acceleration is the rate of change of _______.
position
time
velocity
force
The equation used to find acceleration is a= __________
vf -vi/t
v/t
vi-vf/t
vi + vf/t
Inertia varies depending on ______________.
force
mass
velocity
motion
Newton's first law of motion is also called the law of __________.
mass
inertia
force
constant velocity
The upward force on an object falling through the air is ___________.
air resistance
inertia
momentum
terminal velocity
The relationship between mass, force, and acceleration is explained by
conservation of momentum
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
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
The acceleration due to gravity is _____.
98 m/s2
9.8 m/s2
9.8 m/s
0.98 m/s
According to Newton's second law of motion _______.
F=m x a
F= m x v
F=p x a
F=p x v
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
In the equation p=mv, the p represents __________.
friction
inertia
momentum
position
The statement " to every action there is and equal and opposite reaction" is __________.
the law of conservation of momentum
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
A 300N force acts on a 25kg object. The acceleration of the object is _________.
7500m/s2
300m/s2
25m/s2
12 m/s2
The kinetic energy of an object increases as its ___________ increases.
gravitational energy
potential energy
specific heat
velocity
Increasing the speed of an object _______ its potential energy.
does not affect
increases
decreases
changes
The SI unit for energy is the ____________.
calorie
joule
meter per second
kilogram
You can calculate kinetic energy by using the equation _______.
KE(J)=m(kg) x 9.8m/s2 x h(m)
KE(J)= w (m) x h (m)
KE(J)= 1/2 m(kg) x v2(m2/s2)
KE(J)= 9.8 m/s2 x 1/2 m(kg)
You can calculate gravitational potential energy y using the equation _________________.
GPE(J)= 1/2 m(kg) x 1/2 h (m)
GPE(J)=m (kg) x 9.8 m/s2 x h(m)
GPE(J)= h(m) x 9.8 m/s2
GPE(J)=1/2h (m) x w (m)
The rate at which work is done is called _____.
efficiency
effort time
force
power
The unit of power is the ______________.
joule
watt
m/s
second
Fog is an example of a _______.
colloid
compound
solution
substance
When two or more substances are combined so each substance can be separated by physical means, the result is a(n) ______________.
chemical change
compound
element
mixture
Each inner energy level of an atom has a maximum number of ___________ it can hold.
electrons
neutrons
quarks
protons
