Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Give this quiz to my class
Q 1/33
Score 0
If a force is exerted on an object, which statement is true?
30
A small force always produces a large change in the object’s momentum.
A small force applied over a long time interval can produce a large change in the object’s momentum.
A large force always produces a large change in the object’s momentum.
A large force produces a large change in the object’s momentum only if the force is applied over a very short time interval.
Q 2/33
Score 0
The impulse experienced by a body is equivalent to the body’s change in
30
force.
momentum.
acceleration
velocity
33 questions
Q.
If a force is exerted on an object, which statement is true?
1
30 sec
Q.
The impulse experienced by a body is equivalent to the body’s change in
2
30 sec
Q.
A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum
3
30 sec
Q.
The speed of a 4-kg ball with a momentum of 12 kg m/s is
4
30 sec
Q.
A car traveling along the highway brakes to a stop over a certain distance. More braking force is required if the car has
5
30 sec
Q.
Padded dashboards in cars are safer in an accident than non-padded ones because passengers hitting the dashboard encounter
6
30 sec
Q.
Compared with falling on a stone floor, a wine glass may not break when it falls on a carpeted floor because the
7
30 sec
Q.
If you can't avoid being hit by a fast-moving object, you'll suffer a smaller contact force if you can extend that force over a
8
30 sec
Q.
Which produces more force: driving into a very massive concrete wall with no "give," or having a head-on collision with an identical car moving toward you at the same speed?
9
30 sec
Q.
The average braking force of a 1000-kg car moving at 10 m/s braking to a stop in 5 s is
10
30 sec
Q.
Which of the following has the greatest momentum?
11
30 sec
Q.
The recoil momentum of a cannon that kicks is ________ the momentum of the cannonball it fires.
12
30 sec
Q.
A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the roller coaster
13
30 sec
Q.
Two skaters stand facing each other. One skater’s mass is 60 kg, and the other’s mass is 72 kg. If the skaters push away from each other without spinning,
14
30 sec
Q.
The change in an object’s momentum is equal to
15
30 sec
Q.
Granny whizzes around a skating rink and is suddenly confronted with little Ambrose at rest directly in her path. Rather than knock him over, Granny picks him up and continues in motion without "braking". The collision between Granny and Ambrose is...
16
30 sec
Q.
Granny whizzes around a skating rink and is suddenly confronted with little Ambrose at rest directly in her path. Rather than knock him over, Granny picks him up and continues in motion without "braking". According to the Law of Conservation of Momentum...
17
30 sec
Q.
Granny whizzes around a skating rink and is suddenly confronted with little Ambrose at rest directly in her path. Rather than knock him over, Granny picks him up and continues in motion without "braking". After the collision, Granny's speed will...
18
30 sec
Q.
As the speed of a rolling ball is increasing, the increasing speed is accompanied by:
19
30 sec
Q.
Which of the following energy forms is associated with an object due to its position?
20
30 sec
Q.
A ball with a momentum of 4.0 kg·m/s hits a wall and bounces straight back without losing any kinetic energy. What is the change in the ball’s momentum?
21
30 sec
Q.
At Six Flags, a roller coaster car is lifted to the peak of the first hill on the Goliath.
22
30 sec
Q.
The main difference between kinetic energy and potential energy is that
23
30 sec
Q.
The kinetic energy of an object increases as its ____ increases.
24
30 sec
Q.
What type of collision is this?
25
30 sec
Q.
What is the velocity of the second piece of egg?
26
30 sec
Q.
What type of collision is this?
27
30 sec
Q.
How much momentum does the car have? ____ kg*m/s
28
30 sec
Q.
How much momentum does the pickup have? ____ kg*m/s
29
30 sec
Q.
How fast do the autos move after the collision? ____ m/s
30
30 sec
Q.
What type of collision is this?
31
30 sec
Q.
Find the speed in m/s of the approaching smaller fish before lunch.
32
30 sec
Q.
A car carrying a 72-kg test dummy crashes into a wall at 35 m/s and is brought to rest in 0.10 s. What is the magnitude of the average force exerted by the seat belt on the dummy? ___N
