8th Grade Science Q2

Front

What is the primary reason astronauts use weighted boots on the Moon?

Back

To help them walk due to the lower gravitational pull.

Front

What is the difference in gravity between Earth and the Moon primarily due to?

Back

Mass.

Front

What happens to the spectral lines of a star that is moving away from us?

Back

They shift to the red end of the spectrum.

Front

What two factors does gravity depend on?

Back

Mass and distance.

Front

In which position will an astronaut feel a greater gravitational pull, Position A or Position B?

Back

Position B.

Front

How can a student make an electromagnet stronger?

Back

By increasing the current.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the relationship between mass and gravitational pull?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the effect of distance on gravitational force?

Back

As distance increases, gravitational force decreases.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.