Physics Review Module: Quiz 4

Front 1

If an object falls, does acceleration and velocity increase, decrease, or remain the same?

Back 1

Unchanged

Front 2

If displacement per unit time is tripled, the ___________ increases by a factor of _____________

Back 2

velocity, 3

Front 3

When velocity decreases, acceleration has a ________________(negative, positive) value

Back 3

negative

Front 4

More damage and life threatening injuries are incurred in a head on collision of two cars, each traveling at 30 mph, than a car crashing into a brick wall at 30 mph because:

Back 4

The relative velocities of the head on collision is the sum of the two velocities

Front 5

If a car's output is increased, it's efficiency: (increased, decreased)

Back 5

is decreased

Front 6

A real image can be obtained with:

Back 6

A convex lens and concave mirror

Front 7

As light passes from air to water, some light is reflected from the surface. The angle of reflection is :

Back 7

Greater than the angle of refraction

Front 8

True or False: Two models have been propsed for light because both the wave and the wave particle models explain separate light phenomena.

Back 8

True

Front 9

A beam of charged particles can be deflected by :

Back 9

Both a magnetic and electric field

Front 10

A positive charge on a object causes:

Back 10

A deficiency of electrons

Front 11

J. J. Thomson did what for the field of physics?

Back 11

He discovered the electron

Front 12

A cathode ray is:

Back 12

A beam of electrons

Front 13

The nineteenth century scientist who first explored the relationship between electricity and magnetism was:

Back 13

Oersted

Front 14

The space around a charge or a pole in which a force is experienced is:

Back 14

A field

Front 16

A moving electric charge is surrounded by:

Back 16

Both an electric and magnetic field

Front 17

The discovery of current-carrying wire exerts a force on a second current-carrying wire was made by:

Back 17

A. M. Ampere

Front 18

The vectors around a magnetic field around a long, straight, current-carrying wire are:

Back 18

concentric with the wire

Front 19

The phrase that best describes a field is:

Back 19

A sphere of influence

Front 20

The transformer is based on:

Back 20

induction

Front 21

The charge on a charged sphere is:

Back 21

Distributed uniformly over its surface

Front 22

The electric field strength E is measured as:

Back 22

Force per unit charge

Front 23

The inverse square law the describes electrostatic force was name for:

Back 23

Charles Coulomb

Front 24

If a resistance is added in parallel to a circuit, the circuit resistance is then: (more, less)

Back 24

less

Front 25

The driving force for an electric current is called:

Back 25

An electromotive force

Front 26

Induction is the principle applied in :

Back 26

Generators and resistors

Front 27

Metals are good conductors because of their:

Back 27

Outer electron orbits

Front 28

Current is uniform anywhere in a series describes what law?

Back 28

conservation of charge

Front 29

Thomas was able to measure the:

Back 29

Ratio of the charge and mass

Front 30

Atom neutrons are expressed as:

A + Z

Z - A

A - Z

Z = A

Back 30

A - Z

Front 31

Different species of the same element are:

Back 31

isotopes

Front 32

The mass of triton is:

Back 32

Less than the sum of its component masses

Front 33

The angular momentum of an electron in each of its orbits must be some multiple of :

Back 33

Plank's constant