1) What is acceleration? a) how quickly speeds up,slows down or turns. b) is a force that happens when things touch 2) What is contact force? a) the ability to make things happen or change b) is a force that happens when things touch. 3) What is gravity? a) the ability to make things happen or chang b) push or pull that can make things stop or move. 4) What is force a) push or pull that can make things stop or move. b) how quickly speeds up,slows down or turns. c) is a force that happens when things touch d) the energy of movement. 5) what is friction a) a force that slows things down they rub against each other. b) it is stored energy. 6) what is potential enrgy a) is stored energy. b) the energy of movement. 7) What is kinetic energy a) the energy of movement. b) how much stuff something is made of. 8) What is mass a) how much stuff something is made of. b) the energy of movement. 9) What is non-contact force a) the energy of movement. b) a force that acts on things not touching them. 10) What is power a) a force that acts on things not touching them. b) how quickly work is done.

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