CBSE Worksheet for Chapter - 7 Earthquakes Class 8

Worksheets For class 8

Find CBSE Worksheet for chapter-7 Earthquakes class 8

1. CLASS-8
2. BOARD: CBSE
3. PHYSICS Worksheet - 7
4. TOPIC: Earthquakes
5. For other CBSE Worksheet for class 8 Science  check out main page of Physics Wallah.

    

SUMMARY

• Structure of earth – Crust, mantle and Core
• Earthquake, Occurrence of earthquake
• Seismograph
• Hazards
• Earthquake preparedness and safety measure at the time of earthquakes

SECTION 1 – OBJECTIVE

1. Which instrument is used to measure earthquake waves?
   1. Seismogram
   2. Seismograph
   3. Seismic wave
   4. Seismology
2. The point at which the rocks on either side of the plate give way is called:
   1. Focus
   2. Epicenter
   3. Aftershock
   4. Fault
3. The outermost layer of the earth is called:
   1. Mantle
   2. Core
   3. Crust
   4. Centre
4. The branch of science concerned with earthquake and related phenomenon is called
   1. Electrostatics
   2. Optics
   3. Seismology
   4. Centre
5. Earthquake are generally followed by:
   1. Rain
   2. Aftershocks
   3. Thunder
   4. Lightning

SECTION 2 – SUBJECTIVE

1. Explain the working of seismograph with the help of a diagram
2. Define seismology
3. Write the process of occurring of earthquake
4. Explain the following terms with respect to earthquakes:
   1. Focus
   2. epicenter
5. Write a note on the precautions we should take while designing building to reduce loss of life and property due to an earthquake.
6. Write any 3 safety measures that has to be taken at the time of earthquake.

Solutions: to worksheet-7 Topic- Earthquakes

objective