0
Add your answer:
Earn +20 pts
How does density of material affect burn rate?
All else being equal, for the same material, the more dense it is (i.e. the less air it contains) the slower it will burn.There is no overall general rule relating density of different substances and their burn rate.
Does the warm temperature affect the bounce of a ball?
Yes. 'Warm' increases the elasticity. Cold decreases the elasticity. Extreme cold can make the substances brittle and not bounce at all.
Does Heat move through all matter at the same rate?
No it does not
Why do all objects fall at the same time?
Because gravity pulls the masses down at the same rate.
Would two bowling balls hit the ground at the same time on the moon?
Yes. All objects fall at the same rate, but the rate varies depending on the force of gravity.
What do not all substances contract the same in?
not all substances contract in the same
Do all substances have the same force holding them together?
All substances are made up of atoms which have nucleus inside it,since nucleus is same for all whether it be anything,hence all the substances have same force i.e nuclear force.
Are all planets made of the same substances?
NO
Do all colors fade at the same rate?
No, they dont fade at the same rate.
Do all substances melt at the same temperature as water?
no
Does all substances have the same flamability limit and same probability to cause a fire?
No.
Do all calories burn at the same rate?
Calories are calories, no difference between then - they all burn at the same rate.
How does density of material affect burn rate?
All else being equal, for the same material, the more dense it is (i.e. the less air it contains) the slower it will burn.There is no overall general rule relating density of different substances and their burn rate.
What do all metals have in common when they react?
they have the elements and they are in the same substances
Are all substances that look the same the same?
No, they are not.For example: table salt and table sugar.(household sugar and salt); salt is sodium chloride(NaCl), and sugar is sucrose(C12H22O2). Therefore no not all substances that look the same are the same.
Does the warm temperature affect the bounce of a ball?
Yes. 'Warm' increases the elasticity. Cold decreases the elasticity. Extreme cold can make the substances brittle and not bounce at all.
Do all substances catch fire on same temperature. Give reasons?
All substances does not Catch fire at the same temperature. More volatile substances -like solvents - Catch fire at a lot lower temperatures than more stable substance.
