Fast & Furious
What is a scalar quantity?
a quantity that has magnitude (size) but no particular direction.
A girl cycles for 3hrs at a speed of 40 km/h. What distance did she travel?
3 x 40 = 120km
What are the sub-atomic particles make up an atom?
Protons, neutrons & electrons
What are the 2 types of cell division?
Mitosis & meiosis
Name 3 steps in the water cycle.
Precipitation, evaporation, condensation, infiltration, transpiration, runoff
What is a vector quantity?
a quantity that has magnitude (size) and acts in a particular direction.
A car travels a distance of 540km in 6 hours. What speed did it travel at?
540/6 = 90km/h
Where are most metals located on the periodic table?
On the left side.
Where can we find DNA?
Inside the cell nucleus
Name the layers of the Earth from outside to inside.
Crust, mantle, outer core, inner core.
What is the formula for speed?
Distance/Time
A train travels at a speed of 30mph and travel a distance of 240 miles. How long did it take the train to complete it’s journey?
240/30 = 8 hours
What was Dmitri Mendeleev credited with?
Creating the framework of the modern periodic table, arranged elements in order of their atomic mass, left gaps for undiscovered elements.
What does DNA stand for?
deoxyribonucleic acid
How many people are in our class roll?
29
What is the difference between distance & displacement.
Distance is how far an object travels.
Displacement is the overall change in position of an object. It’s only concerned with how far an object is from it’s starting location.
How long does it take to travel a distance of 672km at a speed of 96km/h?
672/96 = 7hours
What are the products of this chemical reaction?
nitric acid + iron →
Iron nitrate & hydrogen gas
Explain 3 ways an infectious disease can be spread.
Through bodily fluids, droplets, vectors, contact with an infectious person, contaminated food/water.
What number is at the end of my email/DoE login?
34
What is the difference between velocity and speed?
Velocity is a vector quantity. It is speed with a direction (e.g. 4km west)
Mr Dunn drives 64.8km from work at a speed of 48km/h. Mrs Dunn drives 81.2km from work at a speed of 58km/h. They both leave work at the same time.
Who arrives home first?
Mr Dunn - he takes 1.35 hours (64.8/48). Mrs Dunn takes 1.4 hours (81.2/58)
Balance this equation.
Fe + Cl2 🡪 FeCl3
2Fe + 3Cl2 🡪 2FeCl3
A heterozygous brown male (Bb) mated with a homozygous blue-eyed female (bb).
B = brown eyes b = blue eyes
Determine the percentage of this couple getting a blue-eyed child.
50%
When is my birthday?
26th January