Physics QE Reviewer

Multiple Choice

• vector quantity

• quantity of motion that an object has

• measured in the SI unit 𝑘𝑔 ∙ 𝑚⁄𝑠

• velocity
• momentum

• acceleration

• impulse

Multiple Choice

The faster an object is moving and the greater its mass, the greater the momentum

• true

• false

Multiple Choice

The greater the momentum, the easier it is for the object to change its motion or stop

• true

• false

Multiple Choice

• vector quantity

• force acting on an object for given time

• measured in the SI unit 𝑁 ∙ s

• momentum
• velocity
• impulse
• acceleration

Multiple Choice

“The impulse is equal to the change in the momentum of the object”

• true

• false

Multiple Choice

Conservation of Linear Momentum: “In an isolated system, the total momentum of two or more bodies acting upon each other remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed”

• true

• false

Multiple Choice

occurs when an object in motion comes into contact with another object

• collision
• interaction
• impact
• contact

Multiple Choice

Types of Collision: there is a loss of kinetic energy in the system

• Perfectly inelastic collision
• Elastic collision
• Conservation of momentum
• Inelastic collision

Multiple Choice

Types of Collision: there is no net loss in kinetic energy in the system

• Perfectly inelastic collision
• Elastic collision
• Coefficient of Restitution

• Inelastic collision

Multiple Choice

Types of Collision:

• objects involved remain separate

• total kinetic energy and momentum is conserved

• objects bounce off each other without losing energy

• collision of atoms and molecules; balls at a billiard table

• Perfectly inelastic collision
• Elastic collision
• Coefficient of Restitution

• Inelastic collision

Multiple Choice

Types of Collision:

• only momentum is conserved

• lost kinetic energy is transformed into other energy such as sound, heat, or material deformation

• collision of steel blocks on ice; car crash

• Perfectly inelastic collision
• Elastic collision
• Coefficient of Restitution

• Inelastic collision

Multiple Choice

Types of Collision:

• two objects collide with each other to form one mass and move on the direction of the bigger mass

• Perfectly inelastic collision
• Elastic collision
• Coefficient of Restitution

• Inelastic collision

Multiple Choice

• ratio of final velocity to the initial velocity between two objects after their collision

• measures the elasticity of the collision

• Perfectly inelastic collision
• Elastic collision
• Coefficient of Restitution

• Inelastic collision

Multiple Choice

Values of coefficient of restitution:

0 < 𝑒 < 1

• Perfectly inelastic

• Elastic

• Inelastic

Multiple Choice

Values of coefficient of restitution:

e = 0

• Perfectly inelastic

• Elastic

• Inelastic

Multiple Choice

Values of coefficient of restitution:

𝑒 = 1

• Perfectly inelastic

• Elastic

• Inelastic

Multiple Choice

• branch of physics and a subdivision of classical mechanics

• concerned with the forces that act on bodies in static or dynamic equilibrium

• statics
• thermodynamics
• kinematics
• dynamics

Multiple Choice

• motion of a body turning about an axis, where each particle of the body moves along a circular path

• described by using angular quantities

• kinematic and dynamic equations can be used and rewritten in terms of angular quantities

• Linear motion
• Circular motion
• Rotational motion
• Translational motion

Multiple Choice

● Straight line motion/linear motion

• Rectilinear motion

• Rotational motion
• Angular motion
• Curved motion

Multiple Choice

○ Axis of rotation can be NOT IN THE

CENTER

○ Axis of rotation depends on CENTER

OF MASS (Moment of Inertia)

○ Figure skater

• Rotational

• Circular

Multiple Choice

○ Axis of rotation is at CENTER

○ Same radius to points and axis of

rotation

○ Ferris wheel

• Rotational

• Circular

Multiple Choice

describes how an item is moving across space

• translational

• angular

Multiple Choice

describes how an item rotates along a fixed axis or deals with motion in a circular path

• translational

• angular

Multiple Choice

● Rotational inertia

● Center of mass

● Rotational analog for mass and is

represented by I

● SI UNIT

○ Kg * m^2

● Property of a rotating body to resist change

in motion

• Moment ni Boss

• Moment of Inertia

• Moment of Resistance

• Moment of Torque

• Moment of Czyrus

Multiple Choice

● Force

○ What causes angular acceleration

● Force required to rotate in an axis

● Hinge doors

● SI UNIT

○ N * m

• Boss

• Inertia

• Resistance

• Torque

• NGCL

Multiple Choice

● Motion that is repeated at regular intervals

● Back and forth

• PERIODIC MOTION

• AMPLITUDE (A)

• PERIOD (T)

• CYCLE

Multiple Choice

● Maximum displacement from equilibrium to

final position

• PERIODIC MOTION

• AMPLITUDE (A)

• PERIOD (T)

• CYCLE

Multiple Choice

● Time required to complete back and forth

motion

• PERIODIC MOTION

• AMPLITUDE (A)

• PERIOD (T)

• CYCLE

Multiple Choice

● Back and forth motion

• PERIODIC MOTION

• AMPLITUDE (A)

• PERIOD (T)

• CYCLE

Multiple Choice

● Number of cycles per unit time; reciprocal of the period

• FREQUENCY (f)

• ANGULAR FREQUENCY

• SIMPLE HARMONIC MOTION

• SIMPLE HARMONIC OSCILLATOR

Multiple Choice

• used in dealing with periodic motion

• angular displacement of any wave element per unit of time

• measured in the SI unit 𝑟𝑎𝑑⁄𝑠

• FREQUENCY (f)

• ANGULAR FREQUENCY

• SIMPLE HARMONIC MOTION

• SIMPLE HARMONIC OSCILLATOR

Multiple Choice

● Spring: most common

• type of periodic motion

● Restoring Force

○ Force required to go back to initial position

● Restoring force is directly proportional to the displacement of body from its equilibrium position

● Restoring force acts in an opposite direction

from displacement (-kx)

• FREQUENCY (f)

• ANGULAR FREQUENCY

• SIMPLE HARMONIC MOTION

• SIMPLE HARMONIC OSCILLATOR

Multiple Choice

○ No movement (at rest)

○ E=0

• Compressed

• Equilibrium

• Stretched

Multiple Choice

○ Shortly before equilibrium position

○ E=conserved

• Compressed

• Equilibrium

• Stretched

Multiple Choice

○ Beyond equilibrium position

○ E=conserved

• Compressed

• Equilibrium

• Stretched

Multiple Choice

ENERGY, VELOCITY, AND ACCELERATION OF SHO: ● Total mechanical energy of a mass-spring

system is the sum of its potential and kinetic energy

• true

• false

Multiple Choice

+x, -F

• Compressed

• Equilibrium

• Stretched

Multiple Choice

-x, +F

• Compressed

• Equilibrium

• Stretched

Multiple Choice

+x, +F

• Compressed

• Equilibrium

• Stretched

Multiple Choice

• has an object that has a small mass, (pendulum bob), which is suspended from a light wire or string

• device where its point mass is attached to a light inextensible string and suspended from a fixed support

• Complicated Pendulum
• Simple Pendulum
• Complex Pendulum
• Difficult Pendulum

Multiple Choice

• force that attracts a body towards the center of the earth or any other physical body having mass

• first formulated by Sir Isaac Newton

• Magnetism
• Friction
• Gravity
• Acceleration

Multiple Choice

● What causes an object to displace

● Newton believed in Copernicus’ theory (sun is at the center of the solar system)

● Every particle in the universe attracts

• Magnetism
• Friction
• Gravity
• Acceleration

Multiple Choice

Planets move in elliptical orbits with

the sun as one of the foci of the

ellipse

• LAW OF ORBITS

• LAW OF PERIODS

• LAW OF AREAS

Multiple Choice

○ A straight line drawn from the sun to

planet sweeps equal areas at equal

intervals of time

○ Farther away from the sun = lower

speed

○ Closer to the sun = higher speed

• LAW OF ORBITS

• LAW OF PERIODS

• LAW OF AREAS

Multiple Choice

○ The squares of the periods of the

planets are proportional to the cubes

of their average distances from the

sun

○ p^2 (periods/time) is directly

proportional to a^3 (distance

average)

• LAW OF ORBITS

• LAW OF PERIODS

• LAW OF AREAS