Journey to Mars: Understanding Newton's Laws

What is the primary difference between mass and weight as explained in the video?

• Mass changes with location, weight does not.

• Weight changes with location, mass does not.

• Both mass and weight change with location.

• Neither mass nor weight change with location.

Which of Newton's laws is demonstrated when the rocket's gases are expelled downward, causing it to move upward?

• Newton's First Law

• Newton's Law of Universal Gravitation

• Newton's Second Law

• Newton's Third Law

Why do the astronauts feel heavier during the rocket's launch?

• Because of the increased gravitational pull from Earth.

• Due to the acceleration of the rocket.

• Because they are moving away from Earth's gravity.

• Due to the decrease in atmospheric pressure.

What happens to the spacecraft's velocity once it enters space and the thrusters are turned off?

• It moves at a constant velocity.

• It decelerates gradually.

• It comes to a stop.

• It accelerates continuously.

Upon landing on Mars, why do the astronauts feel lighter?

• Mars has a stronger gravitational pull than Earth.

• Their mass decreases on Mars.

• Mars has a weaker gravitational pull than Earth.

• The spacecraft reduces their weight.