Kinetic Energy
About the Lecture
The lecture Kinetic Energy by Jared Rovny, PhD is from the course Energy of Point Object Systems.
Included Quiz Questions
An object’s velocity is doubled and its mass is halved, how does its kinetic energy change?
- It doubles
- It halves
- It remains the same
- It quadruples
- More information is needed
An object has a mass of 5 g and a velocity of 2 m/s. What is its kinetic energy?
- 0.01 J
- 0.1 J
- 1 J
- 10 J
- 100 J
Two objects are moving in opposite directions with the same kinetic energy K. What is the total kinetic energy of this system of 2 objects?
- 2K
- K
- 0
- -K
- -2 K
What are the 2 conservation laws that are a result of the symmetries (or invariance) of physical laws under transformations in space and time, respectively? Which scientist initially discovered the relation between symmetries and conservation laws?
- Conservation of momentum and conservation of energy, Emmy Noether
- Conservation of momentum and conservation of energy, Thomas Young
- Conservation of angular momentum and conservation of energy, James Clerk Maxwell
- Conservation of lepton number and the uncertainty principle, Werner Heisenberg
- Conservation of energy and conservation of momentum, Emmy Noether
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Author of lecture Kinetic Energy
Jared Rovny, PhD
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