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WorksheetsCalculate Kinetic Energy
Total questions: 15
Worksheet time: 15mins
Motion energy is properly called kinetic energy; it is proportional to the mass of the moving object and grows with the square of its speed (velocity). You can calculate the kinetic energy of an object by using the following equation:
KE=21mv2
Using this equation, you will recognize that as the mass (m) or velocity (v) of an increases or decreases, kinetic energy of the object also changes in a predictable manner.
GOT IT!
I don't get it.
Based on the kinetic energy equation, which object has more kinetic energy? Assume both balls are moving at the same speed (velocity).
1 kg ball
5 kg ball
Based on the kinetic energy equation, which object has more kinetic energy? Assume both balls have the same mass.
Ball moving at 5 m/s.
Ball moving at 10 m/s.
According to the equation, you have to square the velocity (speed) of the object in order to calculate its kinetic energy. This simply means you multiply the number by itself. If the velocity (speed) of an object is 10, what is the result when you square the velocity?
20
100
Based on the kinetic energy equation, which object has more kinetic energy? Assume both objects are moving at the same speed (velocity).
A roller coaster full of people
An empty roller coaster
Based on the kinetic energy equation, which has more kinetic energy?
JaNoah walking with an empty bookbag
JaNoah walking with a bookbag that contains her math workbooks, the book she is reading for English, and her Chromebook
If an object has a mass of 1 kg and a velocity of 0 m/s, what is the objects kinetic energy. Hint: Another way to look at the equation is .
1 J
0 J
According to the equation, you have to square the velocity (speed) of the object in order to calculate its kinetic energy. This simply means you multiply the number by itself. If the velocity (speed) of an object is 2, what is the result when you square the velocity?
2
4
According to the equation, you have to square the velocity (speed) of the object in order to calculate its kinetic energy. This simply means you multiply the number by itself. If the velocity (speed) of an object is 3, what is the result when you square the velocity?
6
9
According to the equation, you have to square the velocity (speed) of the object in order to calculate its kinetic energy. This simply means you multiply the number by itself. If the velocity (speed) of an object is 4, what is the result when you square the velocity?
16
8
As mass increases, KE ...
increases
decreases
stays the same
What two factors affect an object's kinetic energy?
area and volume
mass and weight
weight and height
mass and speed
A car of mass 1000 kg is moving at a speed of 20 m/s. What is its kinetic energy?
100,000 J
200,000 J
400,000 J
800,000 J
Which of the following changes will increase the kinetic energy of a moving object the most?
Doubling its mass
Doubling its speed
Halving its mass
Halving its speed
A cyclist and a car are moving at the same speed. If the car has a mass of 1500 kg and the cyclist has a mass of 75 kg, which has more kinetic energy?
The cyclist
The car
Both have the same kinetic energy
Cannot be determined
