8sw1 Yearly Science Exam

37 Questions | By Kelsoscience | Last updated: Nov 3, 2016 | Total Attempts: 58

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Year 8 - 2016 End of Year Science Exam

Questions and Answers

1.

The particle of an atom with a positive charge is known as the:
- A.
  
  Neutron
- B.
  
  Proton
- C.
  
  Electron
- D.
  
  Particle
2.

The particles that move around the nucleus of an atom are called:
- A.
  
  Neutrons
- B.
  
  Protons
- C.
  
  Electrons
- D.
  
  Ions
3.

All atoms are made up of what 3 basic components?
- A.
  
  Nucleus, protons and electrons
- B.
  
  Ions, protons and electrons
- C.
  
  Electrons, protons and neutrons
- D.
  
  Elements, compounds and mixtures
4.

In the table shown which letter best describes the characteristics of a metal?
- A.
  
  A
- B.
  
  B
- C.
  
  C
5.

In the table shown which letter best describes the characteristics of a non-metal?
- A.
  
  A
- B.
  
  B
- C.
  
  C
6.

In the picture shown, what is represented by line A?
- A.
  
  Atomic number
- B.
  
  Atomic mass
- C.
  
  Number of protons
- D.
  
  The group number
7.

In the picture shown, which line represents the symbol for the element?
- A.
  
  B
- B.
  
  A
- C.
  
  C
- D.
  
  D
8.

An element be broken down into a simpler substance
- A.
  
  True
- B.
  
  False
9.

In the picture shown, what does the box labelled A represent?
- A.
  
  Pure Element –only one typeof atom present
- B.
  
  Mixture of two elements –two types of uncombined atoms present.
- C.
  
  Pure compound –only one type of compound present
- D.
  
  Mixture of two compounds –two types of compounds present
- E.
  
  Mixture of a compound and an element.
10.

In the picture shown, what does the box labelled B represent?
- A.
  
  Pure Element –only one typeof atom present
- B.
  
  Mixture of two elements –two types of uncombined atoms present.
- C.
  
  Pure compound –only one type of compound present
- D.
  
  Mixture of two compounds –two types of compounds present
- E.
  
  Mixture of a compound and an element.
11.

In the picture shown, what does the box labelled C represent?
- A.
  
  Pure Element –only one typeof atom present
- B.
  
  Mixture of two elements –two types of uncombined atoms present.
- C.
  
  Pure compound –only one type of compound present
- D.
  
  Mixture of two compounds –two types of compounds present
- E.
  
  Mixture of a compound and an element.
12.

The chemical formula for the compound salt is NaCl. Salt contains the elements:(hint = use the picture shown)
- A.
  
  Sodium and carbon
- B.
  
  Sodium and chlorine
- C.
  
  Chlorine and nitrogen
- D.
  
  Nitrogen and carbon
13.

Most of the worlds electricity comes from the burning of:
- A.
  
  Alcohol
- B.
  
  Coal
- C.
  
  Oil
- D.
  
  Natural gas
14.

Coal stores energy. The energy originally came from:
- A.
  
  The Earth
- B.
  
  The sun
- C.
  
  Chemicals
- D.
  
  Rocks
15.

A natural fuel formed in the geological past from the remains of living organisms is known as:
- A.
  
  A fossil fuel
- B.
  
  Solar energy
- C.
  
  Geothermal
- D.
  
  Biomass
16.

Which of these resources is non-renewable?
- A.
  
  Natural gas
- B.
  
  Wind
- C.
  
  Solar energy
- D.
  
  Hydroelectricity
17.

Plants obtain the energy to make food from:
- A.
  
  Water
- B.
  
  Air
- C.
  
  Soil
- D.
  
  The sun
18.

Which of the following is a fossil fuel?
- A.
  
  Oil
- B.
  
  Iron ore
- C.
  
  Solar energy
- D.
  
  Hydrogen
19.

Which of the following is NOT a chemical change?
- A.
  
  Burning a match
- B.
  
  Dissolving sugar in tea
- C.
  
  Ripening of a banana
- D.
  
  Cooking a cake
20.

Potential Energy (PE) is:
- A.
  
  The energy caused by the movement of an object
- B.
  
  Energy that is stored (like compressed springs)
- C.
  
  The energy that is used when a light is switched on
- D.
  
  The energy released when a runner gets hot
21.

Batteries are stores of:
- A.
  
  Electrical energy
- B.
  
  Chemical energy
- C.
  
  Kinetic energy
- D.
  
  Acidic energy
22.

Food is a source of:
- A.
  
  Electrical energy
- B.
  
  Chemical energy
- C.
  
  Kinetic energy
- D.
  
  Thermal energy
23.

This image shows which method of heat transfer:
- A.
  
  Conduction
- B.
  
  Convection
- C.
  
  Radiation
- D.
  
  Thermal energy
24.

This image shows which method of heat transfer:
- A.
  
  Conduction
- B.
  
  Convection
- C.
  
  Radiation
- D.
  
  Thermal energy
25.

In which situation below is heat being transferred mainly by radiation?
- A.
  
  From a hot clothes iron to your hand held close to it
- B.
  
  From hot plate on the stove to the soup in the saucepan
- C.
  
  From a hot car door to your hand placed on the metal
- D.
  
  From a hot drink to the end of a metal spoon used to stir it

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