Where is the net force when the rollercoaster is at the top of the loop?

Towards the center 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.

Momentum is conserved in this type of collision

momentum is conserved in both types of collisions

The Law of Conservation of Momentum states:

The total momentum before a collision is equal to the total momentum after a collision.

The total momentum before a collision is greater than the total momentum after a collision.

The total momentum before a collision is less than the total momentum after a collision.

The total momentum before a collision is not related to the total momentum after a collision.

An object moving on a horizontal, frictionless surface makes a glancing collision with another object initially at rest on the surface. In this case which of the following is true about momentum and kinetic energy?

Momentum is always conserved, and kinetic energy may be conserved

Kinetic energy is always conserved, and momentum may be conserved.

Momentum is always conserved, and kinetic energy is never conserved

Both momentum and kinetic energy are always conserved

Neither momentum nor kinetic energy is conserved

If one knows only the constant resultant force acting on an object and the time during which this force acts, one can determine the

change in momentum of the object

change in velocity of the object

change in kinetic energy of the object

If a collision is elastic which of the following must be true?

The objects are in an open system

The total momentum is equal to 0

An object moving on a horizontal, frictionless surface makes a glancing collision with another object initially at rest on the surface. In this case which of the following is true about momentum and kinetic energy?

Momentum is always conserved, and kinetic energy may be conserved

Kinetic energy is always conserved, and momentum may be conserved.

Momentum is always conserved, and kinetic energy is never conserved

Both momentum and kinetic energy are always conserved

Neither momentum nor kinetic energy is conserved

What is the centre of mass ?

it is a single point at which the object can balance.

The mass is distributed equally around it.

the centre of gravity of the object

Circular Motion AP Physics

Authored by Hilary Walker

Physics

9th Grade - University

NGSS covered

Used 12+ times

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38 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Centripetal acceleration acts towards the ___________ of the circular motion

center

circumference

outside

radius

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What object experiences uniform circular motion?

A car speeding up as it turns left

A car traveling around a roundabout at a constant speed

A car slowing down as it crests a tall hill

A car traveling down the road at a constant speed

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which represents the acceleration of the ball?

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the force that causes centripetal acceleration when a car goes around a curve?

Friction

Gravity

Normal

Tension

Tags

NGSS.HS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The velocity is always _____ to the line of a circle.

outwards

towards the center

tangent

faster

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Circular Motion AP Physics

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

Centripetal acceleration acts towards the ___________ of the circular motion

What object experiences uniform circular motion?

Which represents the acceleration of the ball?

What is the force that causes centripetal acceleration when a car goes around a curve?

The velocity is always _____ to the line of a circle.

A rocket of mass m begins to ascend vertically at v m/s. The work that gravity does on the rocket is:

The area under a force-time curve represents:

An object is moving with uniform speed in a counterclockwise, horizontal circle. Which of the following images correctly depicts the force vector and velocity vector at a point in time.

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