What are the two main factors that affect seawater density?
Sea water has characteristic properties (e.g. density) that are independent of sample size. There are two main factors that make ocean water more or less dense: temperature and salinity. Cold, salty water is denser than warm, fresher water and will sink below the less dense layer.
What factor does not affect density?
In other words, the size or amount of a material/substance does not affect its density. 3. Does temperature affect density?
What are two factors that will affect density and how?
The density of an object or quantity of matter is its mass divided by its volume. This is usually measured under standard conditions for temperature and pressure: 0°C and 1 atmosphere of pressure. One factor affecting the density of a material is how concentrated the atoms are in a given volume.
What are the two factors that determine a materials density?
The mass of atoms, their size, and how they are arranged determine the density of a substance. Density equals the mass of the substance divided by its volume; D = m/v. Objects with the same volume but different mass have different densities.
Which of these is most elastic?
rubber
Which is least elastic material?
Rubber
Which is more elastic rubber or sponge?
STEEL is most elastic among the rubber, steel, glass and sponge. A material with a higher Young’s modulus is more elastic.
Which is more elastic rubber or steel Class 11?
The ratio of stress applied on a body to the strain produced in it is defined as the Young’s modulus of that material. This means that steel has a larger value of Young’s modulus of elasticity and hence, steel has more elasticity than rubber.
Why steel is most elastic?
So, it can be said that for a given amount of stress, the strain produced in the steel is comparatively smaller than the strain produced in the rubber. Therefore, with the help of Young’s modulus, it can be concluded that steel has greater elasticity than rubber.
Why glass is more elastic than rubber?
(a) Glass is more elastic than rubber because for a given applied force per unit area, the strain produced in glass is much smaller than the strain produced in rubber.
Why is iron more elastic than rubber?
Iron is more elastic than rubber because The elastic modulus of the more substance is more elastic.
Which is more elastic iron or steel?
Elasticity is an objects ability to return to its original size and shape when a force is applied then subsequently removed. In general, iron is more elastic. Steel has more stiffness.
Is rubber elastic or plastic?
Tell the students that one way to classify these materials is “plastics” or “rubber”. (Tell students that an elastic substance can stretch and bounce back. Rubber has elastic properties in varying degrees. Plastic, on the other hand, is not as elastic.
Which is more elastic rubber or steel prove mathematically?
Answer. Elasticity is measured on a stress-strain diagram. that means the same stress causes plastic deformations in the rubber sample while the steel sample returns to the no-stress configuration. That’s how steel can be more elastic than rubber.
How does temperature affect the elasticity of rubber?
The rubber band actually expands when it gets colder! This occurs because of the unusual polymer structure of rubber. When the long chains get hotter and vibrate, they actually shorten, causing the material to contract. When the chains cool down, they relax and stretch out, causing the material to expand.
Is Diamond more elastic than steel?
Higher the elastic limit of a material, greater is its degree of elasticity . The elastic limit of diamond is more than that of steel and hence diamond is more elastic than steel.
Which is more elastic Mcq?
Air is more elastic than water.
Which is elastic material?
1 Introduction. Elastomers are elastic materials that are characterized by large strain, high capability to recover the initial shape, nonlinear stress-strain curves and strain hardening [1–5]. Elastomers can be compressed and due to their excellent elasticity retain the original shape.
What happens when elasticity is 0?
If elasticity = 0, then it is said to be ‘perfectly’ inelastic, meaning its demand will remain unchanged at any price. There are probably no real-world examples of perfectly inelastic goods.
Which one has maximum elastic limit?
What is the formula for elastic limit?
In equation form, Hooke’s law is given by F=kΔL F = k Δ L , where ΔL is the change in length. Elasticity is a measure of how difficult it is to stretch an object. In other words it is a measure of how small k is. Very elastic materials like rubber have small k and thus will stretch a lot with only a small force.
What happens to rocks when their elastic limit is reached?
Elastic limit, maximum stress or force per unit area within a solid material that can arise before the onset of permanent deformation. When stresses up to the elastic limit are removed, the material resumes its original size and shape. Stresses beyond the elastic limit cause a material to yield or flow.
What is the elastic limit of steel?
The elastic limit of steel is 8×108Nm−2 and its Young modulus 2×1011Nm−2.