Assessment 4

Question 1

Name a fuel used in cars

Answer 1

Petrol

Question 2

Name a renewable source of energy

Answer 2

Wood, solar power.

Question 3

Name a fuel used in power stations

Answer 3

Uranium

Question 4

Name a solid fossil

Answer 4

Coal

Question 5

In what unit is energy measured

Answer 5

Kilo joules (J)

Question 6

What is potential energy?

Answer 6

Energy that is stored. There is gravitational potential energy and elastic potential energy.

Question 7

What is thermal energy?

Answer 7

Thermal energy is basically heat energy. If heat is released from something it means that Thermal energy is released from it

Question 8

What is kinetic energy?

Answer 8

Kinetic energy is energy from movement. For example when a car drives there is kinetic energy from the movement

Question 9

What is electrical energy?

Answer 9

Electrical energy is energy what comes from an electrical circuit. It is fuelled by a batery or a cell.

Question 10

What is chemical energy?

Answer 10

Chemical energy is energy that comes from chemicals. For example the chemicals in batteries release chemical energy to create electrical energy

Question 11

What is light energy?

Answer 11

Light energy is the energy that comes from a light. It reflects off things or can be absorbed or go through things. For example the light energy from a light bulb

Question 12

What does a watt (W) measure?

Answer 12

A watt measures power, equivalent to one joule per second. Corresponding to the rate electrical energy is used.

Question 13

How many volts are passed along the cables of the national grid?

Answer 13

500,000 volts are passed along the national grid cables

Question 14

How many volts are supplied to our homes from the national grid?

Answer 14

230 to 240 volts

Question 15

What is mass?

Answer 15

Mass is the matter of something or someone

Question 16

What is weight?

Answer 16

Weight is the force of gravity pulling you down towards the centre of the Earth.

Question 17

What is the equation to calculate weight?

Answer 17

Weight=mass multiplied by gravity

Question 18

What unit is mass measured in?

Answer 18

Mass is measured in kg

Question 19

What unit is weight measured in?

Answer 19

Weight is measured in Neutons (N)

Question 20

Name 2 negative impacts caused by fossil fuels

Answer 20

1. It causes global warming because of the carbon dioxide released
2. They are a non renewable source

Question 21

How are ammeters and voltmeters connected

Answer 21

The are connected in parallel

Question 22

What is an orbital period?

Answer 22

is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun

Question 23

How long does the Earth take to spin on its axis once

Answer 23

It takes 23 hours and 56 mins

Question 24

How long does it take for the moon to spin on its axis once

Answer 24

27 days

Question 25

What happens to the temperature of planets as they get nearer to the sun

Answer 25

The temperature increases

Question 26

Why is there warmer weather in Ireland in the summer?

Answer 26

There is more hours of daylight and the sun is at an angle where the sun is concentrating more rays into a smaller area.

Question 27

When do we expect to see no moon?

Answer 27

When there is an eclipse (when another planet goes in front of the moon, blocking our view.)

Question 28

What is a constellation

Answer 28

A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.

Question 29

What is a star?

Answer 29

a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.

Question 30

What is the universe

Answer 30

all existing matter and space considered as a whole; the cosmos

Question 31

Put these in order from smallest to largest? A constellation, a star or the universe

Answer 31

A star, a constellation, the universe

Question 32

What is a polar satellite?

Answer 32

A spacecraft designed to study the polar magnetosphere and aurora

Question 33

What is a geostationary satellite?

Answer 33

is a circular geosynchronous orbit 36000 km above Earth's equator and following the direction of Earth's rotation.

Question 34

How long does the Earth take to spin on its axis once

Answer 34

It takes 23 hours and 56 mins

Question 35

How long does it take for the moon to spin on its axis once

Answer 35

27 days

Question 36

What happens to the temperature of planets as they get nearer to the sun

Answer 36

The temperature increases

Question 37

Why is there warmer weather in Ireland in the summer?

Answer 37

There is more hours of daylight and the sun is at an angle where the sun is concentrating more rays into a smaller area.

Question 38

When do we expect to see no moon?

Answer 38

When there is an eclipse (when another planet goes in front of the moon, blocking our view.)

Question 39

What is a constellation

Answer 39

A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.

Question 40

What is a star?

Answer 40

a fixed luminous point in the night sky which is a large, remote incandescent body like the sun.

Question 41

What is the universe

Answer 41

all existing matter and space considered as a whole; the cosmos

Question 42

Put these in order from smallest to largest? A constellation, a star or the universe

Answer 42

A star, a constellation, the universe

Question 43

What is a polar satellite?

Answer 43

A spacecraft designed to study the polar magnetosphere and aurora

Question 44

What is a geostationary satellite?

Answer 44

is a circular geosynchronous orbit 36000 km above Earth's equator and following the direction of Earth's rotation.

Question 45

What is thrust?

Answer 45

Thrust is the force that propels a flying machine in the direction of motion.

Question 46

When an object has unbalanced forces acting, what happens?

Answer 46

an object that is not moving starts to move. an object that is moving changes speed or direction.

Question 47

When a force has no resultant force acting, what happens?

Answer 47

It keeps moving at a constant speed in the same direction.

Question 48

What are the inner planets made from

Answer 48

They are made of rock, containing common minerals like feldspars and metals like magnesium and aluminum.

Question 49

How do you calculate density?

Answer 49

p=m/V, or density (p) is equal to mass (m) divided by volume (V).

Question 50

How do You calculate speed?

Answer 50

Speed=distance travelled/ time taken, or s=d/t