1
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

While a person climbs stairs, the gravitational potential energy of the person increases. The source of this energy is

A
work done by normal force from the steps
B
work done by frictional force from the steps
C
work done by air resistance
D
work done by internal forces within the person's body
2
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Moon revolves around the earth in an orbit of radius $R$ with time period of revolution $T$. It also rotates about its own axis with a time period $T$. If mass of the moon is $M$ and its radius is $r$, the total kinetic energy of the moon is

A
$\frac{2 M \pi^2 R^2}{T^2}+\frac{4 M r^2 \pi^2}{5 T^2}$
B
$\frac{M \pi^2 R^2}{2 T^2}$
C
$\frac{4 M r^2 \pi^2}{5 T^2}$
D
$\frac{M \pi^2 R^2}{2 T^2}+\frac{4 M r^2 \pi^2}{5 T^2}$
3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The spinning of the Diwali cracker 'ground chakkar' involves the concept of

A
conservation of mechanical energy
B
conservation of linear momentum
C
conservation of angular momentum
D
conservation of charge
4
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A clock is designed based on the oscillation of a spring-block system suspended vertically in the absence of air-resistance. Assume it shows the correct time when a spring of stiffness $k$ and block is mass $m$ are used. If the block is replaced by another block of mass $4 m$, choose the correct option

A
The clock runs slow by 0.5 s for every second
B
The clock runs fast by 0.5 s for every one second
C
The clock runs fast by 1 s for every one second
D
The clock runs slow by 1 s for every one second
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