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Unit 6 Force and Motion Video Notes Balanced and Unbalanced Forces ____________ Forces are forces on an object that ______________ the motion. The net force is _____. ___________ Forces are forces on an object that ____________ in the motion of the object. One side tends to _____________ the other. One side has the _____________. Different types of forces: ______________________________ Forces cause _____________. Acceleration is _____________________________________________. We don't use the word ______________ for slowing down. Forces are measured in units called _________. A ________________ is the measurement tool used to determine net force. Machines: Inclined Planes and Pulleys A machine is a device that ________________________________. It can change: the amount of force you exert, the _______________________; the distance over which you exert the force, the _________________________; and the _______________________ in which you exert the force. An inclined plane is a ________________________ that is __________________ at a particular angle. A pulley can make work easier in two ways: by ________________________ the amount of _________________ force needed; and by changing the __________________________ of the input force. Kinetic and Potential Energy Energy is the ability to do ___________ or _______________. Energy comes in two basic types: ______________________________________ Kinetic energy is the energy an object has because of its _______________. It depends on the object's ____________ and velocity. Kinetic energy is ____________________________. Potential energy is the energy that results from the ______________ or __________ of an object. Potential energy is energy that is ___________________ in a system. How are Potential and Kinetic Energy related? When an object _______________, potential energy ______________ into kinetic energy. An object at rest has ____________________ energy but not ________________ energy. Calculate Average Speed Speed is a type of _____________. A rate is a measurement of something that ___________ or ______________ in one ____________ of time. The speed of an object is the distance the object travels per unit of time. Speed = ____________________________________________ Unit 6 Force and Motion Video Notes Change of an object's speed or direction An opposing or slowing force caused by air Average distance covered by an object per unit time Forces of an object that do not change the motion of the object Energy cannot be created no destroyed; it changes from one form to another The path that an object is moving or facing What is needed to do work or cause change A push or pull that changes the motion or position of an object A simple machine that is sloping at a particular angle Energy in motion Amount of work done or expected to be done A change in an object's position, direction, or location The sum of all the forces acting on an object The SI unit for force The point or area occupied by a physical object Energy that is stored in a system A device consisting of a wheel over which a rope or chain is pulled in order to lift heavy objects Devices that reduce the amount of force needed to move an object The measurement of the rate of change of position with respect to time Forces on an object that cause change in the motion of the object