1) a change in velocity; speeding up, slowing down, change in direction a) gravity b) Newton (N) c) acceleration d) motion 2) a push or pull a) speed b) applied force c) acceleration d) law of inertia 3) net force is 0, forces cancel each other out a) applied force b) mass c) balanced force d) velocity 4) opposite force of movement between two touching surfaces a) friction b) average speed c) law of inertia d) acceleration 5) combination of all forces on an object a) law of inertia b) law of force and acceleration c) net force d) average speed 6) distance something travels in a certain amount of time a) average speed b) net force c) speed d) deceleration 7) net force greater than 0 in one direction a) acceleration b) law of action-reaction c) unbalanced force d) law of inertia 8) attractive force between objects with mass a) gravity b) unbalanced force c) deceleration d) acceleration 9) resistance to change in motion a) inertia b) average speed c) balanced force d) applied force 10) amount of matter in an solid, liquid, or gas a) average speed b) law of inertia c) friction d) mass 11) states that for every action there is an equal and opposite reaction a) law of force and acceleration b) law of action-reaction (Newton's 3rd Law) c) unbalanced force d) inertia 12) states that an object's acceleration is equal to the force divided by mass of an object a) friction b) mass c) law of force and acceleration (Newton's 2nd Law) d) law of action-reaction 13) states that an object at rest will remain at rest and an object in motion will remain in motion unless acted on by an outside force a) applied force b) deceleration c) mass d) law of inertia (Newton's 1st law) 14) unit to measure force a) mass b) Newton (N) c) gravity d) law of action-reaction 15) total distance something has traveled divided by total time a) average speed b) Newton (N) c) motion d) net force 16) change in position a) motion b) law of inertia c) friction d) mass 17) speed in a certain direction a) unbalanced force b) gravity c) velocity d) mass 18) slowing down a) velocity b) deceleration c) speed d) acceleration

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