Flashcards
Physics: Chapter 2: Describing motion
Flashcards do conjunto (20)
- 1What is the equation and symbol equation for speed? What are the units?Speed = distance/ time
s= d/t
Si units = m/s= m / s
km/h = km / h
m/h = m / h - 2What is the equation for the average speed?Average speed= total distance/ total time
or
distance moved/ time taken - 3How does a light gate work?The light gates are connected to an electronic timer or computer. The light gate has a beam. A interrupt card is placed on the object eg: a trolley. as the trolley passes through the gate the interrupt card breaks the beam to start a timer and then another to end it. The with the length of the gates, the speed can be calculated.
- 4What are scalars?A quantity that only has magnitude
- 5What are Vectors?A quantity with magnitude and direction
- 6Give some examples of scalars and some vectorsScalars - distance, speed, time, mass, temperature, pressure, density, gravitational pull
Vectors- displacement, velocity, force, weight, acceleration, moment - 7What is Velocity?The speed of an object in a stated direction
(speed with direction) - 8What is Acceleration?The rate of change of velocity
- 9What is the equation of acceleration?(v-u)/t
change in velocity/ time - 10What is the units for acceleration?m/s2
- 11What is the equation of constant acceleration?Constant acceleration =
final speed + initial speed/ 2 *time - 12How do you calculate the gradient?m = y-y/ x-x
change in y/ change in x - 13What does the gradient represent in a distance time graph?The speed
- 14How do you find the difference in a speed/velocity time graph?Finding the area under
- 15How do you calculate the area under?rectangle= b*h
triangle = b*h / 2 - 16How do you find acceleration in a velocity-time graph?The gradient
change in y over change in x - 17NoteGo over Vector Diagrams
- 18What is the equation for average speed?Average speed = total distance / total time
- 19What is Displacement?The distance an object moves in a straight line from a starting point to a finishing point. Is a vector
- 20What is Terminal Velocity?Highest speed the object can fall at through the atmosphere.
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- GCSE Science (Physics) FlashCards sobre Physics: Chapter 2: Describing motion, criado por HRYN red em 09-11-2019.
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- HRYN red
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