Presentation on theme: "Study Guide Sliding, rolling, static and fluid friction."— Presentation transcript:
1 Study Guide Sliding, rolling, static and fluid friction. Lubricants and ball bearingsA force that opposes the motion of an object.The weight of an object and the type of surface.Chemical to electrical to mechanicalChemical to electrical to lightA series is lined up end to end and is a stronger connection, while parallel is side by side and is a weaker connection.
2 Study Guide Work = force x distance Power = Work time Speed = Distance MassMass- amount of matter in an objectWeight-gravitational force
3 Study GuideYou would weigh less on the moon because there is less gravitational pull on the moon.NewtonsJoulesWattsInertia-the tendency to resist change.Force- push or pullHorsepower-unit of power in the English system that is equal to 750 watts.Work-The product of a force and the distance through which it acts.
4 Study GuideEnergy –Ability to do work Power- The rate of doing work Balanced forces-Forces on an object that are equal in size and opposite in direction. No distance was made Unbalanced Forces- A net force of an object that always changes the movement (velocity) of an object.
5 Study GuideNewton's 1st law of motion- An object at rest stays at rest and an object in motion stays in motion unless acted upon an unbalanced force. Newton’s 2nd law of motion- Acceleration is produced when a force acts on a mass. The greater the mass, the greater the amount of force needed on an object. Newton’s 3rd law of motion- For every action there is an equal and opposite reaction.
6 Study guide18. Work= Force * Distance- 16 N* 1.5 meters= 24 J 19.Work= F*D- 8,000 N*1,000 meters= 8,000,000 J 20. A. Work=F*D- 930,000 N*100 meters=93,000,000 J
7 Study Guide 23. Speed= Distance Traveled/Time of Travel 123 meters/4.5 seconds= m/s24. Kinetic is moving. Potential is stored.25.26.NoneVelocity is the speed at which an object is traveling in a single direction.Momentum= mass x velocity