For the lab about conservation of energy, pick correct statement A) Kinetic and
ID: 1637721 • Letter: F
Question
For the lab about conservation of energy, pick correct statement A) Kinetic and potential energy are measured directly with an energy measuring device B) The only direct measurements are of positions, lengths, and times, Velocity, kinetic energy, potential energy are all calculated C) Kinetic energy can be measured directly, but potential energy is calculated. D) Potential energy can be measured directly, but kinetic energy is calculated. In the Atwood Machine experiment, the instantaneous velocity is measured using a flag and photogates, similar to above. Which side c should you measure to get instantaneous velocity? A) Always measure longer side of flag 8) Always measure the side of flag marked with the blue tape C) Measure the side of flag parallel to direction of motion (i.e. if the flag is moving vertically, measure vertical side) D) Always measure the horizontal side of the flag
Explanation / Answer
Q1.
As there is no device to measure energy directly, either it is kinetic or potential.
in lab we measure position, lengths and time directly,
and velocity, kinetic energy and potential energy is calculated from them.
so correct option is (B)