science plzzz help

posted by .

1 what si the diference between mass and weight?

2 will the following substances float or sink in water at 3.98 degree celcius?

Mass volume float & sink
25g 50ml ?
65g 40ml ?
36g 35ml ?

  • science plzzz help -

    The purpose of this question is for you to calculate the density of the objects and compare their density to that of water. If less than water the object will float, if more than water the object will sink.

    density = mass/volume
    You have mass and volume of each. Calculate density. Then look up the density of water at 3.98 degrees C and compare. Post your results if you want us to check them.

  • science plzzz help -

    thanks ....is it like...

    25g 50ml float 0.5
    65g 40ml float 1.625
    36g 35ml float 1.0285

  • science plzzz help -

    and ya 1 more question

    what is the difference between mass and weight?

  • science plzzz help -

    http://en.wikipedia.org/wiki/Mass_versus_weight

    You calculated the density correctly for all three objects. What did you compare it with to get your three answers of float, float, float?

  • science plzzz help -

    I'm not entirely sure but I think the main difference is that mass is used in relation to the metric system (metric syst. is used universally in compiling data from scientific findings)and I think weight is used in the customary system.

    LOL! All I remember is our Chem teacher telling us "we don't weigh things in here, we mass it"

    Ugh....! I HATED chemistry with a passion!!

  • science plzzz help -

    Mass vs. Weight: Although the terms mass and weight are used almost interchangeably, there is a difference between them. Mass is a measure of the quantity of matter, which is constant all over the universe. Weight is proportional to mass but depends on location in the universe. Weight is the force exerted on a body by gravitational attraction (usually by the earth).

    Example: The mass of a man is constant. However the man may weigh: 150 lbs on earth, 25 lbs on the moon (because the force of gravity on the moon is 1/6 that of the earth), and be "weightless" in space.

    No copyright violation intended. I do not own any of the above mentioned information. Credit goes to a webpage found on Google.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. science....help

    thanks ....is it like... 25g 50ml float 0.5 65g 40ml float 1.625 36g 35ml float 1.0285 and ya 1 more question what is the difference between mass and weight?
  2. Physics Homework

    A 2000 lb box is being held at rest submerged in water. The box is displacing 2500 lbs of water. When the box is released from its submerged position, the box will a. sink b. rise to the surface and float c. remain where it is d. result …
  3. Science

    1) A piece of paraffin wax has a density of 9g/cm3, mass of 900g, and a volume of 100cm3. If the wax was melted to the liquid state, approximately what would it's volume be?
  4. physics

    a cube of side L is made of a substance that is 1/4 as dense as water. WHen placed in a calm water bath the cube will a) float with 1/2 L abovethe surface b)sink to the bottom, c) float with 1/4 L above the surface d) float with 1/4 …
  5. science

    The volume of a 500 g sealed packet is 350 cm cube . Will the packet float or sink in water if density of water is 1 g cm raised to -3 ?
  6. Science 8R - Homework Qs. Check

    If an object has mass of 70.5g and a volume of 64 cm(3), what is its Density?
  7. science

    A substance has a mass of 12.5 grams and a volume of 9.8 ml.Will the object sink or float in water?
  8. physics

    A student is thrown in a lake by his teacher, the student has a mass of 70 kg and a volume of 80,000 cm^3. Would the student sink or float?
  9. Science

    An apple has a volume of 10ml and a mass of 0.8g. Will it sink or float in watee and I need to show my work
  10. Chemistry 101

    A spherical ball has a diameter of 1.00 inch and a mass of 2.00grams. Will the ball float or sink in water?

More Similar Questions