GENERAL SCIENCE CLASS 8 MCQS

Which colour has largest wavelength in the spectrum of white light:

1. Violet
2. Green
3. Red
4. Blue

Which colour has smallest wavelength in the spectrum of white light:

1. Red
2. Blue
3. Yellow
4. Violet

A Spectroscope is used to:

1. Measure the distance of a star from Earth
2. Identify the chemical elements present in a star
3. Determine the temperature of a star
4. Calculate the velocity of a star

A man-made object developed to accomplish a certain task in space:

1. Spacecraft
2. Space Station
3. Satellite
4. Telescope

Which among the following is manned spacecraft that took the humans to the moon:

1. Apollo-15
2. Apollo-16
3. Apollo-17
4. Apollo-18

Venera-9 was the first spacecraft landed on the surface of:

1. Jupiter
2. Mercury
3. Neptune
4. Venus

MRI or CT scan resulted from the image exploration of:

1. Moon
2. Saturn
3. Jupiter
4. Sun

A scientific method which monitors the movement of vehicles, ships and aircrafts is known as:

1. Global Navigation Satellite System (GNSS)
2. Global Positioning System (GPS)
3. Geographic Information System (GIS)
4. Geophysical Positioning System (GPS)

A Global Positioning System (GPS) comprises how many satellites:

1. More than 10
2. More than 20
3. More than 30
4. More than 40

The distance between two crests or troughs of a wave is called:

1. Frequency
2. Amplitude
3. Velocity
4. Wavelength