Everyday Science 2137 MCQs [All-Courses]

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For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________?

A Less than the gravitational potential energy of the body

B Equal to the gravitational potential energy of the body

C Greater than the gravitational potential energy of the body

D None of the above

Review Detailed Answer

Correct Answer: Greater than the gravitational potential energy of the body

A bird sitting on a high tension electric wire does not get electrocuted because:

A Sit has high resistance

B the body is earthed

C it does not form a closed path for the flow of current

D its feet are good insulators

Review Detailed Answer

Correct Answer: it does not form a closed path for the flow of current

Which of the following statements is true about escape velocity?

A Escape velocity is independent of the mass of the planet

B Escape velocity is independent of the mass of the escaping object

C Escape velocity decreases with an increase in the radius of the planet

D Escape velocity depends on the shape of the planet

Review Detailed Answer

Correct Answer: Escape velocity is independent of the mass of the escaping object

The color which we see when our eyes are closed?

A Black

B Grey

C Eigengrau

D None of these

Review Detailed Answer

Correct Answer: Eigengrau

On the Moon, the escape velocity is: __________?

A Less than on Earth due to its lower mass and smaller radius

B More than on Earth due to its smaller radius

C The same as on Earth because escape velocity is a constant

D Dependent on the time of day

Review Detailed Answer

Correct Answer: Less than on Earth due to its lower mass and smaller radius

Which metal pollute the air of a big city?

A Copper

B Chromium

C Lead

D Cadmium

Review Detailed Answer

Correct Answer: Lead

If a rocket is launched with a velocity less than the escape velocity of Earth, it will:

A Escape the Earth’s gravitational field

B Enter into an elliptical orbit around the Earth

C Fall back to Earth

D Travel to another planet

Review Detailed Answer

Correct Answer: Fall back to Earth

Potassium nitrate is used in__________?

A Medicine

B Fertilizer

C Salt

D Glass

Review Detailed Answer

Correct Answer: Fertilizer

Escape velocity depends on ________?

A Mass of the object trying to escape

B Radius of the planet or celestial body

C Both mass and radius of the planet or celestial body

D The velocity of the rotating planet

Review Detailed Answer

Correct Answer: Both mass and radius of the planet or celestial body

The gases used in different types of welding would include:__________?

A oxygen and hydrogen

B oxygen, hydrogen, acetylene and nitrogen

C oxygen, acetylene and argon

D oxygen and acetylene

Review Detailed Answer

Correct Answer: oxygen and acetylene

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Everyday Science 2137 MCQs [All-Courses]

All Topics 2137

All Topics 2137

For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________?

A bird sitting on a high tension electric wire does not get electrocuted because:

Which of the following statements is true about escape velocity?

The color which we see when our eyes are closed?

On the Moon, the escape velocity is: __________?

Which metal pollute the air of a big city?

If a rocket is launched with a velocity less than the escape velocity of Earth, it will:

Potassium nitrate is used in__________?

Escape velocity depends on ________?

The gases used in different types of welding would include:__________?

Contact Info

Everyday Science 2137 MCQs [All-Courses]

All Topics 2137

All Topics 2137

Everyday Science 2136

For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________?

A bird sitting on a high tension electric wire does not get electrocuted because:

Which of the following statements is true about escape velocity?

The color which we see when our eyes are closed?

On the Moon, the escape velocity is: __________?

Which metal pollute the air of a big city?

If a rocket is launched with a velocity less than the escape velocity of Earth, it will:

Potassium nitrate is used in__________?

Escape velocity depends on ________?

The gases used in different types of welding would include:__________?