Quiz about Junior Cycle Science Physical World

Question 1

the volume of irregular object is

Accepted Answer

25 cm3

Answer

50 cm3

Answer

75 cm3

Answer

125 cm3

Question 2

Read this scientific instrument to the nearest tenth.

Accepted Answer

6.6 mL

Answer

6.3 mL

Answer

6.6 mm

Answer

6.3 mm

Question 3

This bullseye demonstrates...

Accepted Answer

Low Accuracy & High Precision

Answer

High Accuracy & High Precision

Answer

High Accuracy & Low Precision

Answer

Low Accuracy & Low Precision

Question 4

What quantity does the instrument shown measure?

Accepted Answer

Force

Answer

Temperature

Answer

Time

Answer

Volume

Question 5

What units are used by the instrument shown?

Accepted Answer

oC

Answer

m/s

Answer

N

Answer

S

Question 6

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

Accepted Answer

7 g/cm3

Answer

7 mL

Answer

28 g/cm3

Answer

1/7 g/cm3

Question 7

An object with which of the following densities will float on water?

Accepted Answer

0.7 g/cm3

Answer

1.2 g/cm3

Answer

3.5 g/cm3

Answer

11.4 g/cm3

Question 8

How long did it take this object to travel 10 m?

Accepted Answer

20 s

Answer

0 s

Answer

10 s

Answer

15 s

Question 9

Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?

Accepted Answer

100 seconds

Answer

400 minutes

Answer

100 minutes

Answer

.25 seconds

Question 10

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

Accepted Answer

4 Ohms

Answer

1 Ohm

Answer

3 Ohms

Answer

12 Ohms

Question 11

What is the unit of Electrical Power?

Accepted Answer

Watt

Answer

Joule

Answer

Where

Answer

Amp

Question 12

Calculate the voltage applied when a 60 watt light-bulb uses a current of 5 amps

Accepted Answer

12 volts

Answer

300 volts

Answer

30 volts

Answer

0.08 volts

Question 13

What force causes an extension of 5 cm?

Accepted Answer

1.0 N

Answer

0.8 N

Answer

1.2 N

Answer

0.9 N

Question 14

Ohms Law states that voltage and current are directly proportional to each other. Which graph best represents a material behaving according to Ohm's law?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 15

Find the surface area of the rectangular prism.

Accepted Answer

94 cm. squared

Answer

60 cm. squared

Answer

12 cm. squared

Answer

19 cm. squared

Question 16

Does this table represent a proportional relationship?

Accepted Answer

No

Answer

Yes

Question 17

The application of scientific knowledge of materials and processes to benefit people is also known as...

Accepted Answer

technology

Answer

model

Answer

society

Answer

project

Question 18

It is a branch of Physics that studies the nature and behavior of light.

Accepted Answer

Optics

Answer

Nuclear Physics

Answer

Thermodynamics

Answer

Quantum Mechanics

Question 19

He is the one who invented the telescope.

Accepted Answer

Galileo Galilei (1564-1642)

Answer

Isaac Newton (1643-1727)

Answer

Albert Einstein (1879-1955)

Answer

James Clerk Maxwell (1831-1871)

Question 20

She is the first ever female scientist to win a Nobel Prize for discovering radioactivity.

Accepted Answer

Marie Curie (1867-1934)

Answer

Paul Dirac (1902-1984)

Answer

Richard Feynman (1918-1988)

Answer

Michael Faraday (1791-1867)

Question 21

What kind of circuit is this?

Accepted Answer

series

Answer

parallel

Question 22

LDR means

Accepted Answer

Light Dependent Resistor

Answer

Light Device Regulator

Answer

Low Drive Resistor

Question 23

Choose the correct symbol for this component!

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 24

Name this component

Accepted Answer

switch

Answer

resistor

Answer

LED

Answer

cell

Question 25

What reduces the electric current in a circuit?

Accepted Answer

Resistance

Answer

Circuit

Answer

Electron

Answer

Current

Question 26

What is this the electrical symbol for?

Accepted Answer

Battery

Answer

Buzzer

Answer

Switch

Answer

Resistor

Question 27

The circuit shown was used by a student to verify Ohms Law. Name the instrument labelled V

Accepted Answer

Voltmeter

Answer

Ammeter

Answer

Voltameter

Answer

Ohmmeter

Question 28

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

Accepted Answer

Electrical to light

Answer

Chemical to light

Answer

Electrical to chemical

Answer

Chemical to electrical

Question 29

The diagram shows a complete circuit with a battery and a buzzer making noise. This circuit works by transforming -

Accepted Answer

chemical energy to electrical to sound.

Answer

electrical energy to thermal to light.

Answer

sound energy to electrical to chemical.

Answer

mechanical energy to electrical to sound.

Question 30

Which energy conversion is taking place when you put gasoline in a car?

Accepted Answer

chemical -> mechanical

Answer

thermal -> electrical

Answer

mechanical -> electrical

Answer

mechanical -> electromagnetic

Question 31

What type of energy is in this picture?

Accepted Answer

Potential

Answer

Kinetic

Answer

Chemical

Answer

Sound

Question 32

The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?

Accepted Answer

chemical to light

Answer

thermal to light

Answer

gravitational to potential

Answer

radiant to electrical

Question 33

Where does most of the energy go in this transformation.

Accepted Answer

Heat

Answer

Electrical energy

Answer

Light

Answer

other

Question 34

Where does most of the energy go for this transformation.

Accepted Answer

light

Answer

heat

Answer

electrical

Answer

joules

Question 35

What is the efficiency of a machine if 55.3 J of energy are consumed by the machine, but only 14.3 J of useful energy is produced by the machine?

Accepted Answer

26%

Answer

0.25 J

Answer

386%

Answer

3.86 J

Question 36

Which direction will the heat flow while this person holds a hot cup of tea?

Accepted Answer

from the cup to her hand

Answer

from her hand to the cup

Answer

no heat is transferred

Question 37

What kind of energy does an object possess when it's resting on top of the hill?

Accepted Answer

Potential Energy

Answer

Chemical Energy

Answer

Kinetic Energy

Answer

All of the above

Question 38

what is hydroelecrical power generation

Accepted Answer

the generation of electrical power using a source of moving water

Answer

a source of energy that can be replaced in a relatively short period of time

Answer

a source of energy that cannot be replaced as quickly as it is used

Answer

a non - renewable source

Question 39

Claim: the consumption of natural resources by humans has a negative impact on the environment. What data would provide evidence for this claim?

Accepted Answer

Increased human population and decreased habitats for plants and animals

Answer

Increased human lifespan and increased ice cap size

Answer

Increased consumption of resources by humans and increased biodiversity (variety) in nature

Answer

Increased of fossil fuel burning by humans and decreased use of other resources

Question 40

Some factories that burn coal produce smoke with harmful chemicals, such as sulfur. Scrubbers are devices that are attached to the smokestacks to reduce the amount of sulfur put into the atmosphere. To evaluate the effectiveness of these devices, what data would need to be collected?

Accepted Answer

The amount of sulfur emitted (produced) by a smokestack before and after the scrubber is attached

Answer

The average amount of sulfur in a certain amount of coal

Answer

The amount of coal a factory burns each year and how much sulfur it emits (produces)

Answer

The increase in the use of scrubbers by factories that burn coal

Question 41

Claim: Carbon dioxide (CO₂) emissions can be reduced by increasing the amount of electricity produced by wind.

Which pair of graphs, showing data for CO₂ emissions and wind production of electricity would support this claim?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 42

What is sustainability?

Accepted Answer

Meeting the needs of the present without compromising the needs of future generations.

Answer

Indicators

Answer

Planning for future generations to use all of all the resources.

Answer

Meeting the needs of the present.

Question 43

Which of the following would conserve energy and protect the environment and is also good working practice

Accepted Answer

Reduce transport costs

Answer

Buy materials from the cheapest country

Answer

Transport materials by air

Answer

Use lighter materials

Question 44

What energy conversion is occurring fro A to B to C in the diagram shown.

Accepted Answer

Heat to Kinetic to Light

Answer

Light to Heat to Kinetic

Answer

Kinetic to Heat to Light

Answer

Heat to Light to Kinetic

Question 45

Which bulb is more efficient at transforming electrical energy to light energy?

Accepted Answer

Option B is correct

Answer

A.

Question 46

How will this object move?

Accepted Answer

It won't move.

Answer

It will move to the right.

Answer

It will move to the left.

Answer

It will move in both directions.

Question 47

This type of force resist motion between two surfaces that are pressed together

Accepted Answer

friction

Answer

contact

Answer

gravity

Question 48

To use an LED, you need to connect it in a circuit with a...

Accepted Answer

resistor

Answer

capacitor

Answer

transistor

Answer

inductor

Question 49

What is ohm?

Accepted Answer

Measures electrical resistance

Answer

Measure electricity

Answer

Bob esponja

Answer

Measues circuits

Junior Cycle Science Physical World

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