Important Definitions & Formulas Flashcards
1
Q
Define pH
A
A measure of HOW ACIDIC OR ALKALINE a substance is
2
Q
Define what an indicator is
A
INDICATOR is a substance which CHANGES COLOUR depending on whether the solution being tested is acidic or alkaline
3
Q
Define energy
A
Energy is the ability to DO WORK
4
Q
Define Fertilisation
A
The nucleus of the EGG CELL FUSES with the nucleus of the SPERM CELL
5
Q
Formula for speed?
A
Speed = Distance / Time
6
Q
Formula for pressure?
A
Pressure = Force / Area
7
Q
Define weight
A
Amount of gravitational force acting on an object
8
Q
Define mass
A
Amount of matter in an object
9
Q
Calculation for weight?
A
Weight = mass × gravitational force
