Science M.C.Q. [I MARKS]

Consider the list of terms given below
(i) Tsunami
(ii) Landslide
(iii) Floods
(iv) Lightning
Earthquakes can cause

Major earthquakes are less likely to occur in

An electroscope is a device which is used to find, if an object is

Two charged objects are brought close to each other. Choose the most appropriate statement from the following options.

Which of the following is not likely to cause tsunami?

Earthquakes produce seismic waves that reach the Earth's surface. A seismograph is an instrument that records the seismic waves. The strength of the earthquake is calculated from the graph recorded.

Which of these graphs shows the strongest earthquake?

Amit was travelling in a taxi when he saw lightning at some distance. He heard a loud thunder after a few seconds.
(i) What should Amit do immediately to remain safe?
(a) Increase the speed of the car
(b) Stop the car and remain seated inside
(c) Stop the car and take shelter inside a building
(d) Turn the car and travel in the opposite direction
(ii) Which of these conditions results in lightning?
(a) Negative and positive charges meeting
(b) The number of negative charges increasing
(c) The number of positive charges increasing
(d) Negative and positive charges moving away from each other.
(iii) A lightning conductor protects a building from lightning. What is a lightning conductor made of?
(a) Glass
(b) Metal
(c) Wood
(d) Plastic

Consider the list of terms given below
(i) Seismic
(ii) Mantle
(iii) Fault zone
(iv) Inner core
The boundaries of the earth's plate are known as

The outermost layer of the earth is called

Assertion (A) We should not use an umbrella while crossing an open field during a thunderstorm.
Reason (R) As the rod of umbrella and its supporting wires are made up of metals, it may affect the person who holds the umbrella.

Assertion (A) Maximum damage occurs at epicentre.
Reason (R) Destructive energy of an earthquake is measured on richter scale.

The innermost layer of earth is called

The continuous motion of the plates inside earth crust causes

The magnitude or intensity of an earthquake can be measured by

We see lightning first than sound because

Richter scale measures the strength of earthquakes

Richter scale measurement of the earthquake	Example of damages due to the earthquake
3.0-3.9	No damages but some vibrations felt
4.0-4.9	Cracks in windows, some unstable objects fall
5.0-5.9	Building walls may collapse. movement of furniture
6.0-6.9	Building roofs may collapse. loss of few lives
7.0-79	Cracks on ground, underground pipes broken, loss of many lives

(i) The damages from an earthquake are listed below.
2 people died
5 building roofs collapsed
12 building walls collapsed
What could be the likely reading on the richter scale for the earthquake?
(a) 4.8
(b) 5.4
(c) 6.5
(d) 7.3
(ii) Which of these statements is true about earthquake?
(a) Earthquakes can cause soil erosion.
(b) Most of the earthquakes occur in mountain regions.
(c) The location and duration of earthquakes can be predicted.
(d) Earthquakes are caused by the movement of underground plates.

The diagram shows the focus of an earthquake. Focus is the point inside the earth's crust where the earthquake originates. 1, 2, 3 and 4 are four locations on the earth's surface.

(i) In which location will the effect of the earthquake be maximum?
(a) Location 1
(b) Location 2
(c) Location 3
(d) Location 4
(ii) Raju was in his garden when an earthquake hit the place. What should Raju do to remain safe?
(a) Move to an open space
(b) Run away from the place
(c) Take shelter under a staircase
(d) Take shelter under a large tree

Which instrument is used to measure earthquake?

Tsunami means

The waves produced on the earth's surface is called

The earth's plate responsible for causing earthquake is

The movement of the earth's plates causes

Where is the lightning rod attached to protect the building from lightning?

Lightning conductor

Electric current is to be passed from one body to another. For this purpose, the two bodies must be Joined by

Which of the following can be charged with static electricity?

The charge acquired by glass rod when it is rubbed with a silk is

The like charges

Sparks can be seen on the electric poles, due to which wire becomes

Lightning occurs due to

When a glass rod is rubbed with a piece of silk cloth, the rod

Which of the following cannot be charged easily by friction?