1) What is a Closed Circuit? a) circuit that doesnt work b) circuit that is connected and works c) has an open switch d) has an open wire 2) Open Circuit a) doesnt work b) all wires connected c) closed switch 3) This is an example of Reflection a) mountain b) glass c) glass of water 4) Reflection is all of these except for a) smooth b) bends c) shiny d) bounce 5) Refraction is all of these except for a) bends b) smooth c) goes through d) Changes 6) A push is a) type of force when you move something away from you b) type of force when you move towards you c) is a insulator d) part of a closed circuit 7) A Pull a) a type of force when you move something towards you b) force that moves away from you c) electrical energy d) something standing still 8) Friction is a) when 2 surfaces rub together b) attract to each other c) insulate d) reflect 9) Insulator a) stops/slow energy from flowing through b) lets energy flow through c) reflects light 10) A conductor a) allows energy to flow b) it does not allow energy to flow c) it jumps 11) All are examples of Conductors EXCEPT a) metals b) plastic c) aluminum d) copper e) water 12) All are examples of insulators EXCEPT a) plastic b) wood c) copper d) rubber e) fabric 13) Energy that is moving is ... a) mechanical b) electrical c) thermal d) light 14) Energy that has vibrations is a) sound b) thermal c) mechanical d) light 15) Thermal energy is energy that a) produces heat b) makes vibrations c) moves d) electrical 16) An example of electrical energy is a) charging a battery b) fire c) a phone ringing 17) Gravity a) is a force that pulls towards the ground b) does nothing c) pushes 18) What do simple machines do? a) makes work easier by changing force b) makes work harder  c) nothing 19) Which one is an example of Light energy? a) sun b) running c) soccer 20) which energy is an example of Electrical energy ? a) circuit b) fire c) running

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