Objects that are less dense than the environment in which they are immersed will float, unless they are tethered.
True, the most common method is to use a balance
False It should read: The amount of matter in an object is its mass (not weight)
They must be equal. When forces are balanced, there is no acceleration, and the object will neither rise nor sink.
The actual mass number is the total number of neutrons and protons in the nucleus of an atom. Atoms commonly have varying numbers of neutrons in the same element, these variants are referred to as isotopes.
1 I'm not sure that this is true-- at least without some qualifications. If an object's shape is changed in such a way that it will enclose one or more pockets of air, some other substance, or even vacuum, the object's over-all density may change. If no pockets are formed, then the density probably is not changed 2 Density is the ratio of mass to volume.
The volume of liquid displaced has the same mass as the floating object.
It's true that the volume of displaced water of a floating object equalst the portion of that object that is underwater.
True. According to Archimedes' principle, the volume of water displaced by an object floating in a fluid (like water) is equal to the volume of the part of the object that is submerged in the fluid.
true
true
Yes
Exactly the same as for a non-floating object. Finding the volume of a shape does not vary, (i.e it's always something along the lines of height*width*depth, or area of base *height. "Table" or "surface" is irrelevant, since if it not a variable in the formula). This is true whether the object is floating or not.
The density of the blue object is determined by dividing the mass of the object by its volume. It is a measure of how much mass is contained in a given volume. The formula for density is density = mass/volume.
Look at the LAST WORD of the question, they switch it sometimes if it is: Underwater than it is TRUE, If it's Surface of the water than it is FALSE ~
If these measurements are made in cubic cemtimeters (volume) and grams (mass) this is true. But, if mass is from the english system, (not really pounds, it is slugs, but who knows what a slug is?) and the volume is cubic feet, this is not true.
True. Density is a measure of how much mass is contained in a given volume of a substance. It is calculated by dividing the mass of an object by its volume.
If an object sinks in water, then its mass is greater than the mass of the volume of water that the object displaces. (That could be equal to or greater than the object's actual volume ... a drinking glass displaces more water than the volume of glass in it until the water washes over its rim. A canoe, a bass-boat, and a ship are designed to displace more water than their actual volume.)