Universal Gravitation

Universal Gravitation

Assessment

Interactive Video

Physics

11th Grade

Medium

Created by

Michael Craney

Used 1+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation for Newton's Second Law, converted to relate to gravity?

Fg = ma

Fg = mg

Fg = mv

Fg = m/a

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the variable 'g' represent in the force of gravity equation?

Force of friction

Acceleration due to gravity (9.81 m/s²)

Distance between two objects
Mass of the object

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Newton's Universal Law of Gravitation?

Only large masses attract each other with a constant force regardless of distance.

The force that every mass exerts on every other mass, with a force proportional to the product of their masses.

Every mass repels every other mass with a force proportional to the sum of their masses.
Gravity only acts on objects that are in motion.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

KEY POINT: The gravitational acceleration constant (little g) for the Earth is 9.81 m/s2. Every planet has a different gravitational constant. For example, the gravitational constant for Mars is 3.72 m/s2.

This is TOTALLY DIFFERENT from BIG G, which is the Universal Gravitational Constant that applies to all bodies with mass. The UGC is 6.67 x 10 -11 Newtons.

So, Little G is the acceleration due to gravity of a free falling object towards a SPECIFIC body with mass; while Big G is the actual force of gravity a mass exerts on another mass.

I understand this

I am totally lost.

I like bunnies.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In Newton's equation for Universal Gravitation, what does r represent?

R represents the gravitational constant.
R represents the mass of the larger object.
R represents the acceleration due to gravity.
R represents the distance between the centers of two masses.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the gravitational attraction if only one object exists in a universe?

The gravitational attraction would be constant.
The gravitational attraction would be strong.
The gravitational attraction would be infinite.
The gravitational attraction would be zero.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the force of gravity between two objects relate to Newton's third law?

The force of gravity is only present when objects are in motion.
Gravity acts in a single direction, not equal and opposite.

The force of gravity between two objects is equal and opposite.

Newton's third law states that gravity is a weak force.

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When should the force of gravity equation ( Fg = mg ) be used?

When measuring the speed of an object falling from a height.
When calculating the weight of an object in space.
When determining the mass of an object without gravity.

When calculating the gravitational force on a mass near a planet's surface.