Tag: general knowledge

Quizzes (3615) Questions (119858)

Questions Related to general knowledge

Multiple choice general knowledge science & technology

Which of the following properties applies to X-rays, gamma rays, infra-red, ultra-violet & visible light?

They are all affected by a magnetic field
They are all damaging to health
They all travel with the same speed in a vacuum
They all have similar wavelengths

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Multiple choice general knowledge science & technology

A copper plate is heated to 100 degrees centigrade. It cools by emitting

electrons
radio waves
visible light
infra-red radiation

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Multiple choice general knowledge science & technology

From which of the following materials should a box for storing gamma radioactive substances be made?

lead
graphite
aluminium
glass

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Multiple choice general knowledge science & technology

When a p.d. of 2V is applied across a resistor, 10 J of energy are coverted. What charge flows through the resistor?

4.0 Columbs
5.0 Columbs
6.0 Columbs
7.0 Columbs

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Multiple choice general knowledge science & technology

Many houses have an electricity meter that is read so that the cost of the electricity used by the customer can be calculated. What does the electric meter record?

charge
energy used
power
current

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Multiple choice general knowledge science & technology

The lengths of mercury thread in the stem of a mercury thermometer are given in three situations. length in melting ice = 20 mm length in steam above boiling water = 170 mm length in liquid X = 50 mm What is the temperature of liquid X in degrees centigrade?

40 degree C
30 degree C
20 degree C
10 degree C

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Multiple choice general knowledge science & technology

What is emitted by the hot metal filament in a cathode ray tube?

protons
neutrons
electrons
x-rays

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Multiple choice general knowledge science & technology

An object A of mass 2kg is moving with a velocity of 3m/s and collides head on with an object B of mass 1kg in the opposite direction with a velicity of 4m/s. after collision both objects stick, so that they move with a common velocity (v). Calculate v?

2/3 m/s
1/3 m/s
4/3 m/s
5/3 m/s

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Multiple choice general knowledge science & technology

Which material is the best absorber of infra-red radiation?

white paper
dark anumal fur
shiny metal
window glass

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Multiple choice general knowledge science & technology

What causes a moving body to resist a change in its state of motion?

acceleration
velocity
displacement
inertia

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