Diversity In Living Organisms — Science STD 9 — Question

What for ATP stand?

What happens to the passengers travelling in a bus when the bus takes a sharp turn? Give reasons for your answer.

A body P has mass 2m and velocity 5v. Another body Q has mass 8m and velocity 1.25v. Which of the P and Q has more momentum?

State the various effects of force.

Calculate the number of moles in 12.044 × 10²⁵ atoms of phosphorus.

The valencies (or charges) of some of the ions are given below:

Ion	Valency(Charges)	Ion	Valency(Charge)
Sodium ion	1+	Bromide ion	1-
Ammonium ion	1+	Hydroxide ion	1-
Calcium ion	2+	Sulphate ion	2-
Lead ion	2+	Phosphate ion	3-

Using this information, write down the formulate of the following compounds:

1. Sodium phosphate.
2. Ammonium sulphate.
3. Calcium hydroxide.
4. Lead bromide.

What is a molecule? Explain with an example.

A large truck and a car, both moving with a velocity of magnitude u, have a head on collision and both of them come to a half after that. If the collision lasts for.
Which vehicle experiences the greater acceleration?