1.03 plot and explain distance-time graphs

A distance time graph has distance on the y axis (usually in metres) and time on the x axis (usually in seconds). The gradient of the line (change in y/ change in x) is the speed. If the line is flat then the object is stationary.    

1.04 know and use the relationship between average speed, distance moved and time taken

To calculate average speed use 

speed (m/s) = distance travelled (m)/ time taken (s)

1.05 practical: investigate the motion of everyday objects such as a toy car or tennis ball

Apparatus: stop watch and metre rule

mark the start and end positions for the know distance 

use a metre rule to measure the distance 

line up front of car with start point, release and start timer 

move eyes to end point 

stop timer when front of car passes end point 

improve by repeating and averaging 

make sure car starts from stationary 

calculate average speed using : average speed = distance travelled/ time taken

1.06 know and use the relationship between acceleration, change in velocity and time taken

1.07 plot and explain velocity-time graphs

on a velocity time graph the velocity-time graph the velocity is on the y axis (usually in m/s) and time is on the x axis (usually in s). If the line is flat then the object is moving at a constant velocity. the gradient of the line is the acceleration. The area under the line is the distance travelled.  

1.08 determine acceleration from the gradiend of a velocity-time graph

Gradient = acceleration= change in y/ change in x = change in velocity/time 

1.09 determine the distance travelled from the area between a velocity-time graph and the time axis

The area under the graph can be calculated as rectangles and triangles, or by counting boxes, is equal to the distance travelled. 

1.10 use the relationship between final speed, initial speed, aceleration and distance moved


v= final speed

u= initial speed

a= acceleration 

s= distance moved 

see all the rearrangements of this equation. 

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Section 1: Principles of chemistry

      a) States of matter

      b) Atoms

      c) Atomic structure

     d) Relative formula masses and molar volumes of gases

     e) Chemical formulae and chemical equations

     f) Ionic compounds

     g) Covalent substances

     h) Metallic crystals

     i) Electrolysis

 Section 2: Chemistry of the elements

     a) The Periodic Table

     b) Group 1 elements: lithium, sodium and potassium

     c) Group 7 elements: chlorine, bromine and iodine

     d) Oxygen and oxides

     e) Hydrogen and water

     f) Reactivity series

     g) Tests for ions and gases

Section 3: Organic chemistry

     a) Introduction

     b) Alkanes

     c) Alkenes

     d) Ethanol

Section 4: Physical chemistry

     a) Acids, alkalis and salts

     b) Energetics

     c) Rates of reaction

     d) Equilibria

Section 5: Chemistry in industry

     a) Extraction and uses of metals

     b) Crude oil

     c) Synthetic polymers

     d) The industrial manufacture of chemicals

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