What object experiences uniform circular motion ?

A car traveling around a roundabout at a constant speed

A car speeding up as it turns left

A car slowing down as it crests a tall hill

A car traveling down the road at a constant speed

Why do objects experience centripetal acceleration?

Because they are constantly changing direction and the net change is directed inward

Because they are speeding up as they move in a circle

Because they are constantly changing both speed and direction

Because when you have 100 people pedaling, you can speed up more easily.

Centripetal acceleration always points

towards the center of the circle

in the direction of the object's motion

in the opposite direction of the object's motion

towards the outside of the circle

The mass of Jupiter is 300 x that of the Earth, but a person on its surface would only experience a gravitational attraction 3x that of Earth. What is the best explanation for this according to the Universal Law of Gravitation?

Jupiter has a really big radius

Jupiter is mostly a rocky planet

Centrifugal force is a ______

fictitious force that is really just the linear momentum of an object in uniform circular motion.

force that pushes you to the outside of a circle during uniform circular motion.

The force that keeps the planets in orbit

Centripetal acceleration always points

towards the center of the circle

in the direction of the object's motion

in the opposite direction of the object's motion

towards the outside of the circle

Which statement is true about an object that is traveling in uniform circular motion?

The net force on the object is directed toward the center of the circular path.

The speed of the object varies.

The direction of the object's velocity is constant.

The net force on the object is directed away from the center of the circular path.

What is the difference between rotation and revolution?

Rotation is on its own axis while revolution is around another object.

Rotation is around another object while revolution is around its own axis.

r is the distance between the 2 masses

G is the gravitational field strength

F is the repulsive gravitational force

Two objects are 20 meters apart. What effect does increasing the distance between the objects to 60 meters have upon the gravitational attractive force between them?

1/9 the amount of force will exist

1/3 the amount of force will exist

3 times the amount of force will exist

9 times the amount of force will exist

Gravity, Centripetal Acceleration, Centripetal Force Weight Calculations

Authored by Charles Martinez

Physics

11th - 12th Grade

NGSS covered

Gravity, Centripetal Acceleration, Centripetal Force Weight Calculations

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

2.4 m/s

3.6 m/s

3.9 m/s

4.2 m/s

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

10 N

20 N

30 N

40 N

Centripetal force is...

the resultant force acting on a body moving at constant speed in a circle

the outwards force acting on a body moving at constant speed in a circle

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Centripetal acceleration acts towards the ___________ of the circular motion

centre

circumference

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

0.25 ms^-2

0.5 ms^-2

1 ms^-2

2 ms^-2

A horse gallops around a circular arena. The centripetal force on the horse is ___.

directed outward

tension

directed toward the center of the arena

9.8 N

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which represents the acceleration of the ball?

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Gravity, Centripetal Acceleration, Centripetal Force Weight Calculations

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

Centripetal force is...

Centripetal acceleration acts towards the ___________ of the circular motion

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

A horse gallops around a circular arena. The centripetal force on the horse is ___.

Which represents the acceleration of the ball?

Which of the following depict the speed of the blowing ball?

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.

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Gravity, Centripetal Acceleration, Centripetal Force Weight Calculations

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

Centripetal force is...

Centripetal acceleration acts towards the ___________ of the circular motion

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

A horse gallops around a circular arena. The centripetal force on the horse is ___.

Which represents the acceleration of the ball?

Which of the following depict the speed of the blowing ball?

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.

Access all questions and much more by creating a free account

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Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².