|
Write three differences between transverse waves and longitudinal waves
|
|
0
|
6514
|
March 21, 2018
|
|
Give few examples of Newton’s third law of motion
|
|
0
|
8767
|
March 21, 2018
|
|
Draw a curve showing density or pressure variations with respect to distance
|
|
0
|
1811
|
March 21, 2018
|
|
Describe in brief an activity to illustrate the property of inertia of rest
|
|
0
|
9505
|
March 21, 2018
|
|
For hearing the loudest ticking sound heard by the ear, find the angle x in the figure
|
|
0
|
1016
|
March 21, 2018
|
|
When small boy is trying to push a heavy stone, mention various forces acting on the stone
|
|
0
|
7403
|
March 21, 2018
|
|
Why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard?
|
|
0
|
3229
|
March 21, 2018
|
|
Deduce Newton’s first law from the second law
|
|
0
|
16008
|
March 21, 2018
|
|
What is a stethoscope? Name the principle on which a stethoscope works
|
|
0
|
2484
|
March 21, 2018
|
|
Explain the terms crests and troughs of a wave
|
|
0
|
821
|
March 21, 2018
|
|
Water sprinkler used for grass lawns begins to rotate as soon as as the water is supplied. Explain the principle on which it works
|
|
0
|
12816
|
March 21, 2018
|
|
. What are transverse waves? Give two examples
|
|
0
|
528
|
March 21, 2018
|
|
What are longitudinal waves? Give two examples
|
|
0
|
989
|
March 21, 2018
|
|
Why does a cricket player moves his hand backward while catching the ball?
|
|
0
|
22725
|
March 21, 2018
|
|
There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia?
|
|
0
|
16721
|
March 21, 2018
|
|
Draw a graph for a wave representing wave disturbance and time for a sound changing from low pitch to high pitch, keeping the amplitude of the sound same
|
|
0
|
3690
|
March 21, 2018
|
|
Describe our walking in terms of Newton’s third law of motion
|
|
0
|
3939
|
March 21, 2018
|
|
Why does a boat tend to leave the shore, when passengers are alighting from it?
|
|
0
|
6893
|
March 21, 2018
|
|
Why can a small mass such as a bullet kill a person when fired from a gun?
|
|
0
|
32180
|
March 21, 2018
|
|
A bullet fired against a glass window pane makes a hole in it, and the glass pane is not cracked. But on the other hand, when a stone strikes the same glass pane, it gets smashed. Why is it so?
|
|
0
|
9961
|
March 21, 2018
|
|
Explain giving reasons:
|
|
0
|
3061
|
March 21, 2018
|
|
On which factors does friction depend?
|
|
0
|
3074
|
March 21, 2018
|
|
What is the ratio of SI units to CGS units of momentum? How do you measure the effect of an impulsive force on the body?
|
|
0
|
3539
|
March 21, 2018
|
|
Differentiate between kwashiorkor and marasmus
|
|
0
|
12841
|
March 21, 2018
|
|
Distinguish between acute diseases and chronic diseases
|
|
0
|
6814
|
March 21, 2018
|
|
Describe influenza with its symptoms and prevention
|
|
0
|
2544
|
March 21, 2018
|
|
What are the essential components of primary health care?
|
|
0
|
13661
|
March 21, 2018
|
|
The driver of train A travelling at a speed of 54 kmh-1 applies brakes and retards the train uniformly
|
|
0
|
10581
|
March 21, 2018
|
|
Two stones are thrown vertically upwards simultaneously with their initial velocities u] and w2 respectively
|
|
0
|
3600
|
March 21, 2018
|
|
Why is AIDS considered to be a ‘syndrome’ and not a disease?
|
|
0
|
4303
|
March 21, 2018
|