what is potential energy?, stored energy, what is kinetic energy?, the energy an object possesses due to its motion, what causes friction, physical roughness of the surfaces involved, What is balanced force, two or more forces of equal strength acting on an object, what is unbalanced force, forces doesn’t have an equal amount of strength or direction which causes a change in the objects motion, does gravity bring object down ward or upwards, downwards, is mass and weight the same thing ? Yes or no, No, what is an reaction, two or more substances are transformed into different substances, what is velocity? Speed,direction or both, both, what is acceleration, Change in speed direction or both, what is inertia, resist a change in motion, what is velocity, speed and direction, what is direction, the path an object moves, points or faces to, what is normal force, an support force acting to prevent an object from passing through, what is net force, the overall single force, what is magnetic force, attraction or repulsion between electrically charged partiodue to their motion, what is air resistance, the force of air pushing against an object in motion, what is volume, the capacity a container has to hold something

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