Year 9 Term 1 Synoptic Exam - Pressure Flashcards
1
Q
Pressure is a measure of…
A
The force acting on an area.
2
Q
Which formula is used to calculate pressure?
A
Pressure = force ÷ area (Remember PFA!)
3
Q
What are the units of measurement of pressure?
A
Newton Meters Squared - N/M²
4
Q
A skier wants the pressure on his skis to be as low as possible, so he should choose skis with…
A
A large area.
5
Q
Why is it easier to pop a balloon using the sharp end of the pencil?
A
he sharp end of the pencil has a small surface area.
6
Q
Why is it more difficult to cut an object using a blunt knife?
A
The blade of a blunt knife has a larger surface area than a sharp knife.
7
Q
What affects the depth on the indentation created when a rock rests on the sand?
A
The weight of the rock and its surface area.
