1) The force between two surfaces. a) Friction b) Air resistance c) Gravity d) Water resistance e) Magnetic f) Buoyancy 2) Friction between air and an object. a) Buoyancy b) Friction c) Water resistance d) Air resistance e) Magnetic 3) The force that pulls objects towards the centre of the Earth. a) Water resistance b) Gravity c) Air resistance d) Friction e) Magnetic f) Buoyancy 4) The force present in water that stops boats sinking. a) Friction b) Gravity c) Air resistance d) Buoyancy e) Magnetic 5) A force which slows moving objects down in water. a) Gravity b) Friction c) Buoyancy d) Water resistance e) Magnetic 6) A force that attracts or repels because of electrically charged particles. a) Friction b) Bouyancy c) Magnetic d) Gravity e) Water resistance f) air resistance 7) Object stays at rest a) balanced forces b) unbalanced forces 8) Objects in motion a) balanced forces b) unbalanced forces 9) A push or a pull a) force b) gravity c) friction d) inertia e) resistance 10) Most potential elastic force a) stretched sling shot b) released slingshot 11) Most Potential Energy a) At the Peak b) In the valley 12) Most Kinetic Energy a) At the Peak b) In the valley 13) Most Potential (Chemical) Energy in a battery a) Fully charged in a drawer b) Used in a Remote controlled car

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