NEW
Font size
S
M
L
XL
WorksheetsNewtons Laws and Momentum Review
Total questions: 30
Worksheet time: 51mins
Name
Class
Date
1.
Determine the momentum of 1000-kg car moving northward at 20 m/s.........
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
2.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
3.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
4.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
5.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
6.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
7.
A hockey puck is hit by a player with a stick. the puck continues to slide across the ice rink, but eventually slows down. What causes the puck to slow down?
a)
The forces become balanced.
b)
Gravity becomes the greater force
c)
The force of friction becomes greater than the force of motion.
d)
The puck gets tired and stops
8.
A large box slides across a frictionless surface with a velocity of 12 m/s and a mass of 4 kg, collides with a smaller box with a mass of 2 kg that is stationary. The boxes stick together. What is the velocity of the two combined masses after collision?
a)
0 m/s
b)
4 m/s
c)
8 m/s
d)
12 m/s
9.
A 60 kg basketball player stands still to catch a ball. The player catches the 0.15 kg ball flying horizontally at a velocity of 34 m/s. What is the player’s velocity immediately after catching and holding onto the ball?
a)
0.15 m/s
b)
0.085 m/s
c)
-0.085 m/s
d)
-0.15 m/s
10.
Accelerations are produced by
a)
forces.
b)
velocities.
c)
accelerations.
d)
masses.
11.
What happens when unbalanced forces act on an object at rest?
a)
the object remains at rest
b)
the object begins moving in an unpredictable direction
c)
the object begins moving in the direction of the net force
d)
the object begins moving opposite to the direction of net force
12.
A 20 kg bike accelerates at 10 m/s2. what was the force
a)
25 Newtons
b)
0.5 Newtons
20 Newtons
20 Newtons
c)
200 Newtons
200 Newtons
200 Newtons
d)
10 Newtons
13.
F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
a)
20 N upward
b)
2 N East
c)
5 N downward
d)
0 N
14.
20 N is the
a)
mass
b)
velocity
c)
force
d)
acceleration
15.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
16.
When a woman stands with two feet on a scale, the scale reads 280 N. When she lifts one foot, the scale reads .
a)
less than 280 N
b)
more than 280 N.
c)
280 N.
17.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
18.
What is the formula for force?
a)
F=M/A
b)
F=MA
c)
F=AX
d)
what is force?
19.
According to Newton's Third Law of Motion, when a hammer strikes and exerts a force on a nail, the nail
a)
disappears into the wood
b)
moves at a constant speed
c)
exerts an equal and opposite force back on the hammer
d)
creates a balanced force
20.
To calculate the momentum of an object you must:
a)
divide mass by velocity
b)
multiply mass by velocity
c)
add the mass by velocity
d)
subtract the mass by velocity
21.
Which object has the least momentum?
a)
a 20 kg object traveling 20 m/s
b)
a 2 kg object traveling 200 m/s
c)
a 25 kg object traveling 20 m/s
d)
a 50 kg object traveling 2 m/s
22.
Objects with a net force of zero applied to them:
a)
are moving
b)
are moving at a constant speed
c)
have opposite forces
d)
have unbalanced forces
23.
A horse accelerates from rest to 16 m/s 2 in 3.8 seconds. What is the horse's acceleration?
a)
1.1 m/s 2
b)
4.2 m/s 2
c)
16 m/s 2
d)
61 m/s 2
24.
Collisions where objects continue to move together after the collision are
a)
stuck
b)
non-elastic
c)
inelastic
d)
elastic
25.
Name the opposing force to motion.......
a)
pull
b)
gravity
c)
friction
d)
lift
26.
Stella pushed her sister on the swing with 100 N of force at an acceleration of 2 m/s 2. How much mass does Stella's sister have?
a)
200 kg
b)
50 kg
c)
50 N
d)
120 kg
27.
Which object has the greater momentum
a)
An elephant standing in a field
b)
A train resting in the rail yard
c)
A skateboard moving
d)
A boy sitting in a chair
28.
According to Newton's second law, if you increase the force applied to an object :
a)
it accelerates more
b)
it doesn't move
c)
you get more inertia
d)
it decelerates
29.
Which object has the least momentum?
a)
a 0.25 kilogram softball moving at 20 m/s
b)
a 7.25 kilogram bowling ball moving at 1 m/s
c)
a 2 kilogram rock moving at 3 m/s
d)
a 2 kilogram rock resting on a stump
30.
A boy travels on his sled and discovers initially he is traveling at a speed of 20 m/s. The sled eventually achieves a speed of 35 m/s in 3 seconds. What is the boy's acceleration on the sled?
a)
20 m/s
b)
25 m/s
c)
0.2 m/s
d)
5 m/s
Reset
