Physics (NTSE Stage-2 (National-Level) Scholastic-Aptitude & Language Comprehension): Questions 7 - 8 of 73

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Question number: 7

» Physics » Motion and Force

Appeared in Year: 2013

MCQ▾

Question

The figure below shows the position of a ball at t = 0, t = 1 s, t = 2 s, t = 3 s and t = 4 s

A position vs time graph of a ball

A Position vs Time Graph of a Ball

A ball change its position at five different times

Which of the graph below is a possible graph of the position x (t)?

Choices

Choice (4) Response

a.

A position vs time graph of a ball - Choice A

A Position vs Time Graph of a Ball - Choice A

A ball change its position at five different times

b.

A position vs time graph of a ball - Choice B

A Position vs Time Graph of a Ball - Choice B

A ball change its position at five different times

c.

A position vs time graph of a ball - Choice C

A Position vs Time Graph of a Ball - Choice C

A ball change its position at five different times

d.

A position vs time graph of a ball - Choice D

A Position vs Time Graph of a Ball - Choice D

A ball change its position at five different times

Question number: 8

» Physics » Work and Energy

Appeared in Year: 2013

MCQ▾

Question

A geo-stationary satellite is orbiting around earth at height of 30, 000 km in circular orbit. The radius of the earth is taken as 6000 km. The geo-stationary satellite comes back to its position after one revolution in exacity 24 h. Let the acceleration due to gravity (g) be 10 m/s 2 and mass of satellite be 1000 kg, calculate the work done in 12 h when moving under gravitational force.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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