Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Average value of a short distance |
Measure distance multiple times (n) Add results together Divide by n |
|
|
Average value of time |
Measure the time multiple times Add results together Divide by n |
|
|
Distance |
Speed × time |
|
|
Speed |
Distance ÷ time |
|
|
Time |
Distance ÷ speed |
|
|
Acceleration |
(final speed - initial speed ) ÷ time |
|
|
Gradient - speed time graph |
Acceleration |
|
|
Distance - speed time graph |
Area under graph |
|
|
Gradient - distance time graphs |
Speed |
|
|
Deceleration |
Decreasing changing speed / negative acceleration |
|
|
Free fall |
Object falling towards earth |
|
|
Motion of objects falling without air resistance |
Downward acceleration of 9.8m/s squared Due to no air resiatance Until it reaches ground |
|
|
Process of terminal velocity |
Weight acts downwards Drag atcs upwards Person accelerates downwards Weight = drag No resultant force , no acceleration , forces are balanced Terminal velocity is reached |
|
|
Scalar |
Magnitude only |
|
|
Vector |
Magnitude and direction |
|
|
Weight |
Mass × gravitational field strength |
|
|
Density |
Mass ÷ volume |
|
|
Measure density of irregular solid |
Measure mass in kg Measure volume with ruler Density = mass ÷ volume |
|
|
Measure density of irregular soild |
Measure mass in kg Measure volume using displacement of water Density = mass ÷ volume |
|
|
Conduction |
Solids especially metals |
|
|
Convection |
Liquids and gases |
|
|
Radiation |
Solids , liquids , gases |
