1) Which of the following substances has a fixed shape? a) solid b) liquid c) gas 2) What do you call a hot gas produced when water boils? a) smoke b) steam c) liquid 3) It means to come apart into separate pieces a) assemble b) dismantle c) destroy 4) It is a push or a pull that is applied on an object. a) force b) energy c) mass 5) A force can ____ a stationary object. a) speed up b) slow down c) move 6) A force can _____ a moving object. a) speed up b) move c) do nothing 7) It is an object that attracts magnetic materials such as steel a) friction b) magnet c) metal 8) These are the forces acting between the two objects that are physically touching each other. a) non-contact forces b) contact forces c) frictional force 9) It is a force that acts in the opposite direction of the movement, causing the moving object to slow down and eventually stop. a) gravitational force b) frictional force c) magnetic force 10) It is a source of energy with a limited supply that we can mine or extract from the earth, and it’ll eventually run out. a) renewable energy b) non-renewable energy c) limited energy

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