You have built a catapult as part of an investigation of forces. Changing the mass (weight) of the object you place in the catapult could test which of the following?
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If weight affects the distance the object is propelled
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If weight affects the force of gravity
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If weight affects the force contained in the catapult
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All of the above
Q.2.
Using a catapult to investigate whether weight affects the distance the object is propelled, what would you need to measure in order to collect results?
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The mass of the materials used to make the catapult
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The aerodynamic properties of the objects
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The distance each object travels
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The force contained in the catapult
Q.3.
If you were investigating how well water dissolves different materials, how should you design the investigation?
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By testing three different materials and changing the temperature of the water
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By testing three different materials and seeing how much of each material would dissolve
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By seeing if different materials would raise the temperature of the water
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By seeing if different materials would change the colour of the water
Q.4.
If you were investigating how well water dissolves different materials, you would need to add solute (the material being dissolved) until the water reached what point?
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Saturation point
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Boiling point
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Freezing point
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Dissolving point
Q.5.
If you were investigating how well water dissolves different materials, what would you measure?
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The temperature of the water
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The time it takes the solute to dissolve
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The number of times the solution has to be stirred
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The amount of each solute which can be dissolved
Q.6.
What unit would you use to measure the amount of a solute which can be dissolved in water?
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Centimetres
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Degrees Celsius
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Grams
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Decibels
Q.7.
If you were investigating the viscosity ('runny-ness') of different substances, which of the following could you do?
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Test three different substances by allowing them to 'run' down a surface
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Test three different substances by allowing them to 'run' down three different surfaces
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Test three different substances by letting them 'run' down cold, warm and hot surfaces
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Mix the three different substances together and make observations
Q.8.
If you were investigating the viscosity ('runny-ness') of different substances by allowing them to 'run' down a surface, what variable would you measure?
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The density of the substances
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The temperature of the surface
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The time taken to 'run' down the surface
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How far the substances must 'run' down the surface
Q.9.
Which unit would you use to measure the time substances take to 'run' down a surface?
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Millilitres
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Seconds
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Degrees Celsius
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Grams
Q.10.
Which one of the following could be a conclusion for an investigation into the viscosity (runny-ness) of substances?
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Viscous substances are really slow
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The thicker the substance, the less viscous (runny) it is
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Thin substances are not viscous
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The ketchup took the longest to run down the plastic chopping board
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