# Physics: Mechanics Module 1

 State the unit for the quantity: mass kilogram (kg) State the unit for the quantity:  length metre (m) State the unit for the quantity: time second (s) State the unit for the quantity: temperature kelvin (K) State the unit for the quantity: electrical current ampere (A) State the unit for the quantity: amount of substance mole (mol) State the multiple (power of 10) for the prefix: tera- 1012 State the multiple (power of 10) for the prefix: tera- 109 State the multiple (power of 10) for the prefix: mega- 106 State the multiple (power of 10) for the prefix: kilo- 103 State the multiple (power of 10) for the prefix: centi- 10-2 State the multiple (power of 10) for the prefix: milli- 10-3 State the multiple (power of 10) for the prefix: micro- 10-6 State the multiple (power of 10) for the prefix: nano- 10-9 State the multiple (power of 10) for the prefix: pico- 10-12 State the multiple (power of 10) for the prefix: femto- 10-15 State the multiple (power of 10) for the prefix: atto 10-18 SCALAR quantity has magnitude ONLY and is completely described by a number and appropriate units. VECTOR quantity has both magnitude (size) and direction stated to be completely described List 6 vector quantities VelocityDisplacementAccelerationForceWeightMomentum List 8 scalar quantities speeddistancemasstimedensityenergypowertemperature In scale drawing, arrows should be drawn ............. to .............. head to tail What is the alternative to scalar drawing? Pythagoras or trigonometry When asked for the resultant, which two pieces of information should you give in your answer The force/magnitude (length of the line) and direction (the angle) A vector is resolved by which metod (finding x and y values) Trigonometry - Cos and Sin mainly An object is in equilibrium if The forces acting in all directions are equal and so the resultant is 0 Displacement is the straight line distance from any given point in a stated direction Instantaneous speed is  the speed at a given instant of time Average speed= Average speed = Distance / Time Velocity= Velocity = Displacement / Time Acceleration= Acceleration = Change in Velocity / Time On a velocity-time graph a horizontal line represents Constant velocity, no acceleration On a velocity-time graph a straight line slope shows constant acceleration On a displacement-time graph a horizontal line represents Stationary object, no velocity A displacement-time graph with a straight line slope shows positive/negative constant velocity How can you find displacement from a velocity-time graph? Area under the curve  In SUVAT equations, what does s stand for? Displacement In SUVAT equations, what does u stand for? Initial velocity In SUVAT equations, what does v stand for? Final velocity In SUVAT equations, what does a stand for? Acceleration In SUVAT equations, what does t stand for? Time List the four SUVAT equations s = ut + 1/2at2v = u + ats = 1/2(u + v)tv2 = u2 + 2as Gravity is s_ _ _ _ _ _ _ _ _ _ symmetrical Acceleration due to gravity is 9.81ms-2 Authorjpopat ID173869 Card SetPhysics: Mechanics Module 1 DescriptionAS Physics: Mechanics Module 1 Updated2012-12-23T14:33:52Z Show Answers