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What is the word equation for respiration ?
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Carbon Dioxide + water = Glucose + Oxygen
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Water + Oxygen = Hydrogen peroxide + hydrogen
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Oxgen + Glucose = Water + Carbon dioxide + Energy
What is the role of the liver in the human body?
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To break down toxins and store food
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To break down blood
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To defend the body from radiation
What type of force prevents a football from rolling on the grass forever?
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Gravity
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Uphtrust
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Friction
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Neutrons
When light travels through materials of different densities this may be observed?
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Reflection
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Rebound
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Refraction
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Line of Incidence
What fluid protects a baby during development?
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Amniotic fluid
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Watery fluid
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Grey fluid
What type of energy is stored in a battey?
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Kinetic energy
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Gravitational potential energy
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Light energy
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Chemical energy
If an incident light ray produces an angle of incidence equal to 30 degrees when hitting a mirror: What is the angle of reflection equal to?
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90 degress
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30 degrees
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180 degress
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45 degress
These sorts of rocks are created due to extreme heat and pressure.
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Sedimentary rock
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Metamorphic rock
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Igneous rock
What do red blood cells transport in the human body?
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Oxygen
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Carbon dioxide and battery acid
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Stem cells are and antibodies
Respiration is performed by both animals and plants to make energy: What are the waste products created by a human during respiration?
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Water and glucose
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Oxygen and water
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Carbon Dioxide and Water
What is Mass?
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How heavy something is and measured in grams or kilograms
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The force of gravity on an object emasured in newtons
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The density of an object
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The volume of an object
A shirt can be seen as the color red because?
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All the colors of the color spectrum are absorbed
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The color red is reflected to the eye and other colors are absorbed
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The colour red is absorbed by the shirt
When a substance reaches the freezing point a liquid substance will start to turn into...
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Gas
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Solid
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Liquid
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Dark matter
When a substance reaches the boiling point what physical change usually takes place?
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Liquid to gas
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Gas to liquid
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Solid to gas
The temperature of water at the freezing point and the melting point is?
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100 degrees
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0 degrees
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50 degrees
The following acids listed should produce these salts when reacted with magnesium metal. Hydrochloric acid Nitric acid Sulphuric acid
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Hydrogen Sulphate, Magnesium Sulphate, Magnesium Chloride
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Magnesium Chloride, Magnesium Nitrate, Magnesium Sulphate
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Magnesium solution, magnesium acid, Magnesium metal
Which of these major nutrients provides the most energy per gram?
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Protein
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Carbohydrate
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Fat
Which of these nutrients is needed for growth and repair of body tissue?
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Carbohydrate
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Protein
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Fats
Salt and water mixed together is an example of...
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A Compound
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An Element
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A Mixture
Magnesium, Oxygen, Carbon, Neon and Hydrogen are all single words and represent?
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Compounds
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Element
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Mixtures
When Iron and Sulphur are mixed together and heated a new substance is formed called Iron Sulphide this is an example of?
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A compound
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A element
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A mixture
The amplitude measures?
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The oscillations in a wave as pitch
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The height of a wave as sound
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The speed of a wave as wavelength
The frequency measures?
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The number of oscillations in a wave as spitch
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The number of peaks in a wave as wavelength
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The speed of a wave as frequency
Which color in the color spectrum has the longest wave-length?
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Red
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Yellow
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Blue
Which color in the color spectrum has the shortest wave-length?
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Yellow
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Violet
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Red
Alcohol is very dangerous because it can?
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Slow down reaction time
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Cause the pupils to get bigger
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Make you very alert
What force keeps all the planets in orbit around the sun?
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Matter
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Gravity
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Space energy
What is the energy transfer that takes place when a candle is lit?
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Stored chemical energy transfers to heat and light
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Kinetic energy transfers t heat and light
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Heat and light energy is transfered to chemical energy
The more hours you spend revising for an exam the better your assessment results. This is an example of a ?
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Dependent variable
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Relationship
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Independent variable
To calculate a moment you must ?
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Subtract the distance from the pivot by the force exerted on the pivot
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Divide the distance from the pivot by the force exerted on the pivot
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Multliply the distance from the pivot by the force exerted on the pivot
