Gravity Practice

What is gravity?

• The force of repulsion between objects that have mass

• The force of attraction between objects that have mass

• A type of electromagnetic force between objects

• The force that only affects objects in space

Answer explanation

Gravity is the force of attraction between objects that have mass, pulling them towards each other.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What does Newton's Law of Universal Gravitation state about gravity?

• It states that gravity is a weak force and affects only certain objects in the universe

• It states that gravity is strongest at the edge of the universe

• It states that gravity is universal and affects all objects in the universe

• It states that gravity only affects objects with significant mass like planets and stars

Answer explanation

Newton's Law of Universal Gravitation states that gravity is universal and affects all objects in the universe.

Tags

NGSS.HS-PS2-4

What affects the strength of gravity between two objects?

• The color of the objects

• The distance between the objects

• The shape of the objects

• The temperature of the objects

Answer explanation

The strength of gravity between two objects is affected by the distance between the objects. The closer the objects are, the stronger the gravitational force.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

How does mass affect the force of gravity between two objects?

• Objects with a greater mass have a weaker force of gravity between them

• Objects with a lesser mass have a stronger force of gravity between them

• Objects with a greater mass have a stronger force of gravity between them

• The mass of objects does not affect the force of gravity between them

Answer explanation

Objects with a greater mass have a stronger force of gravity between them because gravity is directly proportional to mass.

Tags

NGSS.MS-PS2-4

What affects the strength of gravity between two objects?

• The color of the objects

• The temperature of the objects

• The mass of the two objects

• The shape of the objects

Answer explanation

The strength of gravity between two objects is affected by the mass of the two objects, not by their color, temperature, or shape.

Tags

NGSS.MS-PS2-4

How does distance affect the gravitational force between two objects?

• Objects that are farther apart have a stronger force of gravity between them

• Objects that are closer together have a weaker force of gravity between them

• Distance does not affect the force of gravity between objects

• Objects that are closer together have a stronger force of gravity between them

Answer explanation

Objects that are closer together have a stronger force of gravity between them because gravity weakens with distance according to the inverse square law.

What is mass measured in?

• Celsius

• Newtons

• Liters

• Grams

Answer explanation

Mass is measured in grams, making it the correct choice out of the given options.

What is weight measured in?

• Kilograms

• Newtons

• Liters

• Grams

Answer explanation

Weight is measured in Newtons, which is the correct unit for measuring force.

Tags

NGSS.MS-PS2-4

Which of the following statements is true about mass?

• A) Mass can change depending on location.

• B) Mass is the force exerted by gravity.

• C) Mass is the amount of matter in an object and will not change.

• D) Mass is measured in Newtons.

Answer explanation

Mass is the amount of matter in an object and will not change, making option C the correct statement.

Which of the following statements is true about weight?

• A) Weight is the amount of matter in an object.

• B) Weight is measured in grams.

• C) Weight is the force exerted by gravity on an object and can change.

• D) Weight will not change.

Answer explanation

Weight is the force exerted by gravity on an object and can change, making option C the correct choice.