Quiz about EWITS 9 Weeks Exam Review

Question 1

A battery or other device which provides energy for a circuit is called a _______.

Accepted Answer

Power source

Answer

Conductor

Answer

Parallel circuit

Answer

Complete circuit

Question 2

When different currents flow through each resistor it is called a ________.

Accepted Answer

Parallel circuit

Answer

Pathway

Answer

Conductor

Answer

Series circuit

Question 3

The flow of electricity through a conductor is called _______.

Accepted Answer

Current

Answer

Battery

Answer

Static electricity

Answer

Switch

Question 4

Question 4.

Accepted Answer

Closed circuit

Answer

Open circuit

Question 5

This is an example of a ______ circuit

Accepted Answer

Parallel

Answer

Series

Answer

Open

Answer

Dihexihedral

Question 6

A negatively charged subatomic particle is called __________

Accepted Answer

electron

Answer

neutron

Answer

proton

Answer

parteon

Question 7

A positively charged subatomic particle is called __________

Accepted Answer

proton

Answer

neutron

Answer

electron

Answer

parteon

Question 8

A student began building a circuit to light a bulb.  What else does the student need to produce light?

Accepted Answer

a battery that has energy

Answer

a wire that is insulated

Answer

a switch that is open

Answer

another bulb of the same size

Question 9

Which of the following can work as an energy source?

Accepted Answer

Battery

Answer

Light bulb

Answer

Wire

Answer

All of them

Question 10

Batteries convert what type of energy into electricity?

Accepted Answer

Chemical energy

Answer

Mechanical energy

Answer

Both

Answer

Kinetic energy

Question 11

Silver is a _____?

Accepted Answer

conductor

Answer

insulator

Question 12

Which of the following wires would have the MOST resistance in a circuit?

Accepted Answer

A 20 gauge wire

Answer

A 5 gauge wire

Answer

A 10 gauge wire

Answer

A 15 gauge wire

Question 13

How does resistance affect current?

Accepted Answer

more resistance - less current

Answer

less resistance - less current

Answer

more resistance - more current

Answer

resistance does not affect current

Question 14

How is the amount of resistance related to the amount of current in a circuit?

Accepted Answer

inversely proportional

Answer

directly proportional

Answer

equal

Question 15

What is the most commonly used metals for making wires?

Accepted Answer

Copper

Answer

Gold

Answer

Silver

Answer

Alloy

Question 16

Adding resistors to a circuit makes a dependent variable _______________.

Accepted Answer

slow down

Answer

speed up

Answer

stay the same

Question 17

Which type of wave does sound travel in?

Accepted Answer

Longitudinal

Answer

Transverse

Question 18

Which answer best explains what causes a wave?

Accepted Answer

Vibrations

Answer

Shaking

Answer

Potential energy

Answer

Light

Question 19

What kind of wave is pictured?

Accepted Answer

Longitudinal

Answer

Transverse

Answer

surface

Answer

none of the above

Question 20

Question 20.

Accepted Answer

Amplitude

Answer

Frequency

Answer

Wavelength

Answer

Trough

Question 21

Question 21.

Accepted Answer

Crest

Answer

Trough

Answer

Amplitude

Answer

Wavelength

Question 22

Question 22.

Accepted Answer

Trough

Answer

Crest

Answer

Height

Answer

Frequency

Question 23

Question 23.

Accepted Answer

Wavelength

Answer

Amplitude

Answer

Crest

Answer

Trough

Question 24

Which wave in the diagram has the greatest frequency?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 25

Which wave in the diagram has the greatest wavelength?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 26

High Amplitude =__________________

Accepted Answer

Louder sounds

Answer

Quieter Sounds

Question 27

What is the resulting direction of a surface wave?

Accepted Answer

circular

Answer

parallel

Answer

opposite

Answer

perpendicular

Question 28

If the angle of incidence is 65 degree, what is the angle between the incident ray and reflecting surface?

Accepted Answer

65

Answer

25

Answer

130

Answer

0

Question 29

What are the 7 colors of the visible light spectrum in order of decreasing wavelength?

Accepted Answer

Red, orange, yellow, green, blue, indigo, violet

Answer

Violet, indigo, blue, green, yellow, orange, red

Answer

Red, yellow, orange, blue, green, violet, indigo

Answer

Blue, indigo, violet, green, red, orange, yellow

Question 30

This term describes objects that transmit some light.

Accepted Answer

Translucent

Answer

Transparent

Answer

Opaque

Answer

Diffusion

Question 31

The meaning of this term is to cause to separate and move in different directions.

Accepted Answer

Disperse

Answer

Reflect

Answer

Refract

Answer

Transmit

Question 32

The meaning of this term is to allow the passage of energy or matter.

Accepted Answer

Transmit

Answer

Reflect

Answer

Refract

Answer

Disperse

Question 33

This term means to change direction or bend from the original path.

Accepted Answer

Refract

Answer

Reflect

Answer

Transmit

Answer

Disperse

Question 34

In general, which types of materials transmit sounds most quickly?

Accepted Answer

Solids, then liquids, then gases

Answer

Solids, then gases, then liquids

Answer

Gases, then liquids, then solids

Answer

Gases, then solids, then liquids

Question 35

Light always travels in a

Accepted Answer

straight line

Answer

wavy line

Answer

curved line

Answer

zig-zag line

Question 36

Opaque substances are good at reflecting and _____ light.

Accepted Answer

absorbing

Answer

dirracting

Answer

refracting

Answer

reflecting

Answer

scattering

Question 37

What can light waves travel through?

Accepted Answer

Water

Answer

Sand

Answer

Wall

Answer

Rock

Question 38

As air particles are pushed together, they create a region of higher density and pressure in a longitudinal wave.  These areas are called:

Accepted Answer

compressions

Answer

sound waves

Answer

rarefactions

Answer

transverse wave

Question 39

Does sound transmit longer in air or in a solid?

Accepted Answer

air

Answer

solid

Question 40

Compared to wave X, which statement is incorrect?

Accepted Answer

Wave Y has shorter frequency

Answer

Wave Y has greater energy

Answer

Wave Y has shorter wavelength

Question 41

Which statement best compares these two waves?

Accepted Answer

Wave 2 has more energy because it has a higher amplitude than wave 1

Answer

Wave 1 has a higher frequency because it has a longer wavelength than wave 2

Answer

Wave 1 has a higher frequency because it has a longer amplitude than wave 2

Answer

Wave 2 has more energy because it has a higher frequency than wave 1

Question 42

Hope drew a diagram to model a light wave being reflected when it meets a brick, as shown.

The teacher asked Hope to redraw the diagram in order to model some of the energy

in the light wave being absorbed by the brick.

Which diagram best represents some of the energy in the light wave being absorbed

by the brick?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 43

During an investigation, a teacher places a small permanent magnet with a hole in it onto a wooden rod. The magnet can slide freely up and down the rod. When the teacher places the

magnet and rod on a tabletop above an electromagnet, the magnet slides up the rod as shown

in the diagram.

A student measures how far the magnet slides up the rod each time the teacher adds an

additional battery to the electromagnet. Which question could most likely be answered by this

investigation?

Accepted Answer

How does the amount of the electric current affect the distance the magnet travels up the

rod?

Answer

How does the size of the magnet affect the distance the magnet travels up the rod?

Answer

How does the distance between the magnet and the electromagnet affect the strength of

the magnetic force of the electromagnet?

Answer

How does the direction of the electric current affect the strength of the magnetic force of

the electromagnet?

Question 44

Tyrone gathers amplitude and energy data for four ocean waves, as shown in the table.

Which equation best represents the relationship between the amplitude (A) of an ocean wave

and its energy (E), according to the data in the table?

Accepted Answer

E = A2

Answer

E = A

Answer

1/E = A

Answer

1/E = A2

Question 45

The diagram shows an electromagnetic spectrum.

Based on the information shown, which statement is not true?

Accepted Answer

Ultraviolet waves have a longer wavelength than visible light.

Answer

Ultraviolet waves occur at a higher frequency than Infrared waves.

Answer

Gamma Rays have the shortest wavelength of all wave types.

Answer

Visible light waves carry more energy than microwaves.

Question 46

This diagram models a sound wave from a car horn hitting a wall.

According to the model, which statement best describes what happens to the sound energy

when the sound wave hits the wall?

Accepted Answer

Ten percent of the sound energy is absorbed by the wall.

Answer

Thirty percent of the sound energy is absorbed by the wall.

Answer

Eighty percent of the sound energy is reflected by the wall.

Answer

Eighty percent of the sound energy passes through the wall.

Question 47

A student created an electromagnet out of a piece of copper wire, a nail, and a battery,

as shown.

The student observed that the electromagnet could not lift paper clips off a desktop as expected.

Which hypothesis will most likely help the student build an electromagnet capable of lifting

paper clips?

Accepted Answer

Adding more coils of copper wire to the nail will increase the number of paper clips that

the electromagnet can pick up.

Answer

Using a wooden stick instead of a nail will increase the number of paper clips that the

electromagnet can pick up.

Answer

Pushing the coils of copper wire closer together will increase the number of paper clips

that the electromagnet can pick up.

Answer

Using a battery that produces less electric current will increase the number of paper clips

that the electromagnet can pick up.

Question 48

This graph represents sound waves generated by a vibrating string at two energy levels.

Which statement best describes the difference in energy between Wave X and Wave Y?

Accepted Answer

The energy of Wave Y is 16 times greater than the energy of Wave X.

Answer

The energy of Wave Y is 4 times less than the energy of Wave X.

Answer

The energy of Wave Y is 4 times greater than the energy of Wave X.

Answer

The energy of Wave Y is 16 times less than the energy of Wave X.

Question 49

A group of students is using resistors to investigate energy changes in electrical circuits.

The group builds an electrical circuit using batteries, a switch, and a 10-ohm resistor. A

schematic of their circuit is shown.

Next, the group builds a similar circuit using a 15-ohm resistor. The group places a thermometer

on each resistor. They record initial temperature measurements and then close both switches.

After 5 minutes, the group records final temperature measurements. Data collected during this

investigation is shown in Table 1.

Which claim is supported by both scientific reasoning and evidence obtained in this

investigation?

Accepted Answer

When the kinetic energy of an object changes, energy is transferred to or from the

object.

Answer

When the thermal energy of an object changes, energy has been created or destroyed.

Answer

When the electrical energy of an object changes, energy has been created or destroyed.

Answer

When the potential energy of an object changes, energy is transferred to or from the

object.

Question 50

Students are researching what colors of visible light that different animals are able to see.

They are given the following portion of the electromagnetic spectrum to aid in their research.

Nina has chosen to research bumblebees. Her research shows that bumblebees can see

wavelengths ranging from 400-600 nanometers. Based on this information, what could Nina

conclude about the sight of bumblebees?

Accepted Answer

Bumblebees see every color but red.

Answer

Bumblebees only see violet and blue.

Answer

Bumblebees only see green and yellow.

Answer

Bumblebees see every color but violet.

Question 51

Look at the picture.  Why won't the light bulb light up?

Accepted Answer

The switch is not closed to form a complete circuit

Answer

The wires from the light bulb are not connected to the battery

Answer

The wires from the light bulb are not connected to the switch

Answer

The wires from the battery are not connected to the switch

Question 52

When wires are connected to a battery and a lightbulb in a circuit, the lightbulb is light. Which types of energy are produced by the battery and lightbulb?

Accepted Answer

Electrical and light

Answer

electrical and sound

Answer

sound and light

Answer

all of the above

Question 53

Question 53.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 54

Question 54.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 55

Question 55.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 56

Question 56.

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 57

When gasoline is burned in a car engine, ________ energy is converted into _________ energy.

Accepted Answer

chemical, mechanical

Answer

thermal, chemical

Answer

chemical, potential

Answer

mechanical, chemical

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