1) What is gravity? a) A force that slows down objects moving through water. b) A force that slows down objects moving through air. c) A force which pulls things down towards the centre of the Earth. d) The unit for measuring force. 2) Which scientist discovered the concept of gravity? a) Rosie Revere b) Galileo Galilei c) Sir Isaac Newton d) Emma England 3) What is mass? a) the amount of matter inside an object. b) The weight of an object. c) The length of an object. d) The width of an object. 4) What is weight? a) The amount of scientific matter inside an object. b) The measure of gravity acting upon an object. c) The length of an object. d) The width of an object. 5) Which scientist discovered that if two objects of similar shape and size are dropped, they will fall at the same rate? a) Rosie Revere b) Galileo Galilei c) Sir Isaac Newton d) Emma England 6) Which two forces act upon a falling parachute? (tick 2) a) water resistance b) gravity c) buoyancy d) air resistance 7) What is the relationship between the size of the surface area and the amount of air resistance acting upon a parachute? a) The smaller the surface area the more air resistance acting upon it. b) The greater the surface area the more air resistance acting upon it.  c) The size of the surface area does not effect the amount of air resistance acting upon it. d) There is no air resistance acting upon the parachute until it lands on the ground. 8) Name two activities where water resistance is useful (tick 2). a) cycling b) swimming c) climbing d) rowing a boat 9) Name an animal that has a streamlined shape a) polar bear b) dolphin c) giraffe d) horse 10) How do you calculate the 'mean' of a set of results data when there are 3 values in total? a) Add the values together. b) Add the values together then add 3. c) Add the values together then multiply by 3. d) Add the values together then divide by 3. 11) What is a mechanism? a) A device that allows a small force to be increased into a larger force. b) A device that allows a large force to be decreased into a smaller force. c) A device to ensure the forces are equally balanced. d) A unit of measure. 12) What is the name for the pivot point on a lever? a) force b) fulcrum c) mass d) weight 13) Identify the 3 ways that pulleys can be used for movement. To change the ... (pick 3). a) speed b) gear c) direction d) force 14) Identify a feature of gears. Pick 1. a) fulcrum b) belt c) lever d) teeth 15) Gears. If the driver gear turns clockwise, the driven gear will turn in which direction? a) quickly b) slowly c) clockwise d) anticlockwise 16) Gears. If the driver gear is smaller than the driven gear, the driven gear will rotate more ...? (pick 1) a) slowly b) quickly c) they will rotate at the same speed d) the driven gear will not move 17) Gears. If the driver gear and the driven gears are the same size, the driven gear will rotate ...? (pick 1) a) more quickly b) more slowly c) at the same rate as the driver gear d) the driven gear will not move

Y5 Science - Forces

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