NEW
Font size
WorksheetsMechanics Review
Total questions: 45
Worksheet time: 2hrs 32mins
Force is directly related to acceleration.
True
False
A positive acceleration ALWAYS causes an object to speed up.
True
False
A negative acceleration ALWAYS causes an object to slow down.
True
False
A larger change in time will result in a smaller force.
True
False
A larger change in time will result in a larger force.
True
False
The slope of a position v. time graph is...
velocity
acceleration
seconds
meters
The slope of a velocity v. time graph is...
velocity
acceleration
meters per second
meters
You walk 10 meters to math class in 20 seconds. Your velocity is...
2 m/s
0.5 m/s
200 m/s
5 m/s
Change in velocity over a given period of time is...
position
motion
speed
acceleration
On a distance vs. time graph, the steeper the slope...
the slower the speed
the faster the speed
less acceleration
greater acceleration
The rate at which velocity changes is called...
motion
average speed
instantaneous speed
acceleration
What are the units for acceleration?
m/s
m
m/s2
s
What are the units for velocity?
Km
s
m/s
m/s2
Acceleration of an object happens when things...
slow down
go faster
both
The graph represents
no motion
constant velocity
positive acceleration
negative acceleration
The graph represents
no motion
constant velocity
positive acceleration
negative acceleration
The graph respresents
No motion
constant Velocity
positive acceleration
negative acceleration
The tendency of a moving object to resist changes in its motion is...
momentum
force
acceleration
velocity
Which of the following is the units for momentum?
kg*m/sec/sec
kg*m/sec
m/sec/sec
m/sec
A Newton is a unit of...
force
inertia
acceleration
velocity
When a heavy football player and a light one run into each other, who exerts more force?
The heavy one
The light one
They are equal
What is Newton's First Law?
F=ma
Every action has an equal and opposite reaction
An object at rest stays at rest, an object in motion stays in motion.
Friction
The momentum of an object depends upon the object's ___________ and _____________.
size and shape
mass and acceleration
mass and veloctiy
mass and energy
What is the momentum of 1000 kg car moving at 20 m/s?
20000 N
20000 J
20000 kg * m/s
10000 kg * m/s
A runner has a momentum of 720 kg*m/s and is traveling at a velocity of 5 m/s. What is his mass?
14.4 kg
1400 kg
144 kg
360 kg
A 2 kg cart has a momentum of 10 kg*m/s. What is its velocity?
22 m/s
.2 m/s
5.0 m/s
20 m/s
An object with a mass of 2000 kg at rest has what momentum?
2000 kg*m/sec
0 kg*m/sec
2000 kg
2000 m/sec
A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision (assuming the first one is now stopped)?
5 m/s
2.5 m/s
10 m/s
7.5 m/s
A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. The two cars stick together. At what speed will the railroad and boxcar move afterwards?
18.6 m/s
3.25 m/s
7.5 m/s
1.86 m/s
While playing pool, Emma notices that the pool balls bounce apart. What type of collision is this?
Elastic
Inelastic
Explosive
This graph shows...
an object stopped.
an object slowing down.
an object speeding up.
an object moving at constant speed.
This graph shows...
an object stopped.
an object speeding up.
an object slowing down.
an object moving at constant speed.
This graph shows...
an object speeding up.
an object stopped.
an object turning around
an object slowing down.
