A ball at the end of a string is swinging as a simple pendulum. Assuming no loss in energy due to friction, we can say for the ball that
A. the kinetic energy does not change but the potential energy does.
B. the mechanical energy changes and is maximum where the kinetic energy is minimum.
C. the potential energy is maximum at each end of the motion.
D. the mechanical energy changes and is maximum where the kinetic energy is maximum.
Answer: C
You might also like to view...
A light bulb is connected to a battery as shown in Figure A below. When a second bulb is connected as shown in Figure B, what happens to the brightness of the original bulb?
The primary evidence that the outer core is molten is an abrupt
A) increase in the velocity of P-waves, but no increase in S-waves. B) increase in the velocity of L-waves. C) stop of S-wave propagation, and a decrease in P-wave velocity. D) stop of P-wave propagation, and a decrease in S-wave velocity.
Which planet is very hot because of an extreme greenhouse effect?
a) Mars b) Earth c) Venus d) Mercury e) Jupiter
What organic compound is represented by a hexagon with a circle inside?
a. Cyclohexane b. Cycloheptane c. Benzene d. Ethanol e. Methane