The Particle Model
1. Different states of matter have different densities.
Which of the following shows the states of matter in density order, starting with the lowest density?
Ai এর মাধ্যমে
১০ লক্ষ+ প্রশ্ন ডাটাবেজ
প্র্যাকটিস এর মাধ্যমে নিজেকে তৈরি করে ফেলো
উত্তর দিবে তোমার বই থেকে ও তোমার মত করে।
সারা দেশের শিক্ষার্থীদের মধ্যে নিজের অবস্থান যাচাই
A student uses a ruler to determine the volume of a cube, A. The length of one side of the cube is 0.100 m.
i) Calculate the volume of cube A.
Volume of cube A = ....................................................m3 [2]
ii) Cube B has the same volume as cube A.
The mass of cube B is ten times greater than the mass of cube A.
Compare the density of cube B with cube A.
Use the equation for density to help your explanation.
[2]
A graduated syringe contains air at room temperature.
The syringe is put in a freezer to cool it down.
When it is removed from the freezer, the piston has moved inwards.
The density of the air in the syringe when cooled is 2.4 kg/m3.
What was the density of the air at room temperature?
The atomic model has changed over time.
Why did the model need to change over time?
Which diagram shows the correct arrangement of particles in a liquid?
