Froggy Jumps Froggy jumps in machines and forcesVersión en línea Froggy va respondiendo preguntas sobre fuerzas y máquinas por Mª Teresa González 1 List the two types of forces. a Contact and non contact forces. b Contact forces and lever c Non contact forces and jump 2 Tell me examples of non- contact forces. a Gravity b Gravity and Magnetism c Magnetism 3 Give me examples of contact forces. a Friction b Buoyancy c Friction and buoyancy 4 Forces can change shape and position. True or False? a True b False c None 5 Which are the two types of machines? a Simple machines b Simple and complex machines c Complex machines 6 Click on examples of simple machines. a A bike. b A lever, a pulley and screw c A bike and pulley 7 Click on examples of complex machines a A bike and a car. b A bike and a lever c A wheel and a wedge 8 Which are the functions of complex machines? a Mechanical b Thermal c Information processing, thermal and mechanical. 9 Give some examples of inventions and discoveries from the past. a Stones b Trees c Penicilin, X-ray, TV, the wheel 10 Technology improves everything but it has limits and risks. True or False? a False b True c None
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