Day 15 (physics) Flashcards
1
Q
What name is given to fluids which flow in a cycle due to temperature differences?
A
A convection current
2
Q
What do we mean by the word “ vacuum “ as used in a vacuum flask?
A
A region of space with no particles
3
Q
Why do birds ruffle their feathers when the weather is cold?
A
To trap air
4
Q
Why do sleeping bags contain air pockets?
A
Air is a good insulator
5
Q
What kind of graph do we use for categoric variables?
A
Bar chart
6
Q
What kind of graph do we use for continuous variables?
A
Line graph
