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WorksheetsMomentum and Impulse
Total questions: 43
Worksheet time: 59mins
The momentum of an object depends upon the object's ___________&_____________.
size and shape
mass and speed
mass and veloctiy
mass and energy
An impulse depends on
weight and force
force and time
electric charge and time
none of these
Definition of impulse:
The time integral of net force that causes Change in momentum
The product of mass and velocity
The ability to do work
the rate of increase of speed or the rate of change of velocity
All of the following are examples of impulse except..
A car moving with constant speed
A tennis ball hitting a racket
A pencil getting stuck to the ceiling
A hammer bouncing of a nail
Given that the initial momentum equals the final momentum.... solve for the velocity if the smaller ball after the collision
50 m/s
98 m/s
20 m/s
50 kg
The Law of Conservation of Momentum states the following:
A force exerted over a time interval that causes a change in an object’s momentum
The product of an object’s mass and its velocity
A collision in which the total momentum and the total kinetic energy remain constant
The total momentum of all objects interacting with one another remains constant, regardless of the nature of the forces between the objects.
A 75 kg runner has less momentum than a 150 kg runner while running with the same velocity. What can the 75 kg runner do to increase his momentum?
Decrease his speed
Increase his speed
Decrease his mass
A 6.0 kg steel block is at rest on a frictionless horizontal surface. A 1.0 kg lump of clay propelled horizontally at 6.0 m/s toward the block as shown in the diagram. Upon collision, the clay and steel block stick together in an inelastic collision and move to the right with a speed of:
0.86 m/s
42 m/s
1.17 m/s
6.0 m/s
The Law of Conservation of Energy
A force exerted over a time interval that causes a change in an object’s momentum
The product of an object’s mass and its velocity
Within a closed system, the total amount of energy will remain constant.
A collision in which some of the kinetic energy is converted into other forms of energy
What is true about the amount of momentum before a collision compared to after a collision
It is the same
If it is an elastic collision, it is the same. If it's an inelastic collision, it is less.
It will most likely be less
It will most likely be more
What is the equation for momentum
p=mv
s=d/t
kg*m/s
F=ma
What is the unit for momentum?
kg
m/s2
kg*m/s
meters
What is the momentum of a 15kg girl moving at a speed of 1.3m/s?
16 kg*m/s
20 kg
20 m/s
20 kg*m/s
Which of the following has the greatest momentum?
a scurrying cockroach
a parked semi-truck
more information is needed
In an elastic collision, ______ is conserved.
Momentum only
Kinetic Energy only
Both momentum and energy
Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
Skater 1 experiences a greater change in momentum
Skater 2 experiences a greater change in momentum
Skater 1 has a greater speed than Skater 2
Skater 1 experiences a greater force
A 2.0 kg ball is thrown at 2 m/s strikes a 20.0 kg person sitting at rest on a bench. The ball gets stuck in the person's hair. What is the velocity of the person and the ball after the collision?
0.12 m/s
0.14 m/s
0.16 m/s
0.18 m/s
A bug is flying through the countryside. The bug flies into a sign with a force of 200 N that takes 0.02 secs to crush it. What is the impulse?
10, 000 N*s
4 N*s
200 N*2
0.08 N*s
A 5.0 kg ball rolls down a hill at 15 m/s striking a 15.0 kg box at rest. The box moves at 2 m/s. What is the velocity of the ball?
7 m/s
8 m/s
9 m/s
10 m.s
The picture shows the end of what type of collision?
Explosive Collision
Inelastic Collision
Bouncy Collision
Elastic Collision
