MYP Science - Year 9 Flashcards

Flashcards for Year 9 Science Holiday Pack, covering current, voltage, resistance, Ohm's law, and food and nutrition.

Resistance (R)

Measured in ohms (Ω). Opposition to the flow of electric current.

Voltage (V)

Measured in volts (V). Also known as potential difference.

Current (I)

Measured in amperes (A). The rate of flow of electric charge.

Ohm's Law

V = I x R (Voltage = Current x Resistance)

Nutrient Groups (List 7)

Carbohydrates, fats, proteins, vitamins, minerals, fibre, water

Starch Test

Iodine solution turns dark blue/black in the presence of starch.

Protein Test

Biuret solution turns purple in the presence of protein.

Kwashiorkor

Deficiency disease caused by lack of Protein, resulting in a 'pot belly'.

Scurvy

Deficiency disease caused by lack of Vitamin C, resulting in painful joints.

Rickets

Deficiency disease caused by lack of Vitamin D, resulting in soft/weak bones.

Anaemia

Deficiency disease caused by lack of Iron, resulting in tiredness.