Buoyancy
What is buoyancy?
The force that pushes up on objects.
Name one physical change.
- colour
- mass
-temperature
- size
- state
Objects that are dense ___________ (sink / float)
Sink - molecules are close together. Density greater than 1. (Generally a smaller volume)
True or False, an orange with its peel will float but without it, it will sink.
True.
What is the difference between buoyancy and gravity?
Buoyancy pushes things up.
Gravity pushes things down.
Do the molecules change during a physical change?
No! (but they move)
Calculate the density. The mass is 50 and the volume is 10.
5
Which liquid dissolves lollipops the best? Water, vinegar or oil?
water.