Gravity

Which of the following governs the motion of our solar system?

• Magnetism

• Gravity

• Sunlight

• Friction

Planets in our solar system orbit the Sun because it –

• has the greatest magnetic field.

• is the celestial body with the greatest mass.

• is the brightest object in our solar system.

• formed millions of years before the planets.

Which two factors affect the strength of the gravitational pull on two objects?

• Mass and density

• Weight and density

• Weight and distance

• Mass and distance

The force of gravitational attraction between the Sun and Jupiter could be increased by reducing which of the following?

• The mass of the Sun and Jupiter

• The distance between the Sun and Jupiter

• The speed of rotation of Jupiter

• The amount of radiation put out by the Sun

Gravity keeps the planets in orbit around the sun.

• True

• False

Sir Isaac Newton was the first scientist to describe how the force of gravity behaved

• True

• False

Any object with mass has gravity.

• True
• Sometimes
• False
• Never

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

The law of universal gravitation is credited to whom?

• Einstein
• Galileo
• Darwin
• Newton

The amount of matter in an object is 

• pressure
• weight
• mass
• force