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WorksheetsFast Pass Physics 3rd Six weeks
Total questions: 40
Worksheet time: 1hrs 20mins
Then how much work is done if it takes 20N to move a box 10 meters
Conservation of energy means that
energy can be created but not destroyed
energy can be destroyed but not created
energy can be both created and destroyed
energy can be neither created nor destroyed
The illustration shows a roller coaster and indicates four different positions the car might be at as it moves along the track.
At which point in the roller coaster's journey is its potential energy the greatest?
W
X
Y
Z
Which variables affect kinetic energy?
pressure and volume
velocity and mass
weight and height
temperature and weight
Sammy studied kinetic and potential energy by observing apples on a tree during a field investigation. What type of energy do the apples on the tree have?
elastic potential energy
mechanical energy
gravitational potential energy
sound energy
A roller coaster is an example of a system with mechanical energy.
True
False
When a tennis ball is dropped, potential energy is destroyed and kinetic energy is created.
True
False
Which point on the pendulum's swing represents the minimum potential energy?
A
B
C
D
At what point on the hill will the car have zero gravitational potential energy?
At the bottom of the hill.
At the top of the hill.
Half-way down the hill.
It will never have zero gravitational potential energy
Which point on the roller coaster's path represents the maximum kinetic energy?
D
C
B
A
The Law of Conservation of Momentum states:
The total momentum before a collision is equal to the total momentum after a collision.
The total momentum before a collision is greater than the total momentum after a collision.
The total momentum before a collision is less than the total momentum after a collision.
The total momentum before a collision is not related to the total momentum after a collision.
According to Newton's Laws, for every action there is an ....
equal and opposite reaction.
equal and parallel reaction.
unequal and opposite reaction.
unequal and unrelated reaction.
Pick all of the scenarios below that are collisions.
A catcher catches a baseball.
A pitcher throws a baseball.
Two cars smash into each other.
Two students on roller skates push away from each other.
A bug smashes into a windshield.
Rahim observed a collision in lab where the kinetic energy after the collision was equal to the kinetic energy before the collision. This type of collision is
Completely Inelastic
Elastic
Inelastic
Which of the 0.5kg spheres in the image experiences the greater impulse?
Black
White
Same
Not Enough Info
If each object is moving at the same velocity which will have the least momentum?
Baseball
Bowling Ball
Golf Ball
Tennis Ball
If you double the velocity of an object, then its momentum will ______________.
will double
will half
will quadruple (x4)
will be quartered (x 1/4)
If an object has a momentum of 40 kgm/s and a mass of 60 kg, what is it's velocity?
2400 m/s
1.5 m/s
240 m/s
.67 m/s
