WorksheetsTypes of Energy and Conservation
Total questions: 20
Worksheet time: 3600secs
An object is speeding up when: (Choose All That Apply)
it is gaining kinetic energy.
it is losing kinetic energy.
it is gaining gravitational potential energy.
it is losing gravitational potential energy.
If a pendulum has 20 J of potential energy at point 1, how much kinetic energy will it have a point 3?
0 J
10 J
20 J
30 J
If a pendulum has 30 J of kinetic energy at point 3, how much potential energy will it have a point 3?
0 J
10 J
20 J
30 J
If a ball tossed into the air has a maximum gravitational potential energy of 5.75 joules, what is its maximum kinetic energy in the same toss?
5.75 joules
11.14 joules
2.88 joules
7.93 joules
Where is the car moving fastest?
A
B
C
D
Which of the following is NOT a kind of energy that makes up mechanical energy in a system?
gravitational potential energy
kinetic energy
elastic potential energy
thermal energy
Which of the following is FALSE according to the law of conservation of energy?
total mechanical energy in a system is conserved
the amount of energy in a system always changes
if you add up the kinetic and potential energies for a system at any given time, the total energy will always be the same value
Energy in a system can be transformed into different types of energy but it can never be destroyed
Which of the following is INCORRECTLY matches the type of energy with its description?
Kinetic Energy - energy of motion
Gravitational Potential - energy due to position
Elastic Potential - energy stored in a spring
Mechanical Energy - energy in the form of heat
Rank in order, from largest to smallest, the gravitational potential energies of the balls.
1 > 2 = 4 > 3
1 > 2 > 3 > 4
3 > 2 = 4 > 1
3 > 2 > 4 > 1
Starting from rest, a marble first rolls down a steeper hill, then down a less steep hill of the same height. Ignoring friction, for which is it going faster at the bottom?
Faster at the bottom of the steeper hill
Faster at the bottom of the less steep hill
Same speed at the bottom of both hills
Can’t say without knowing the mass of the marble
You are traveling along a freeway at 65 mi/h; your car has kinetic energy. You suddenly skid to a stop because of congested traffic. What happened to the kinetic energy your car just had?
It is all in internal energy in the road
It is all in internal energy in the tires
Some of it has transformed to internal energy for the tires and the road, and some of it transferred away by sound energy and thermal energy into the air.
It was destroyed
A basketball that is dropped bounces back up to its original height. Pick the correct energy transformation from the point when it was dropped until it returns to the original height.
KE --> PE --> Elastic
PE --> KE --> Elastic --> KE --> PE
KE --> PE --> Elastic --> PE --> KE
Elastic --> PE --> KE --> Elastic
At which point of this roller coaster is the energy 1/2 kinetic and 1/2 potential?
A
B
C
D
At which point in the picture must the cart have the most MECHANICAL energy?
Point 1
Point 2
Point 3
They would all be the same
What situation describes the initial (i) and final (f) state shown by the energy bar graph.
A phone falls from a table (i) to the floor (f)
A ball is thrown straight up (i) into the air (f)
A car driving on a flat road (i) accelerates (f)
Which of the following looks like the correct energy bar chart for position E?
Which object has elastic potential energy?
a hanging leaf
a burning coal
a rolling ball
a stretched bow
