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Leaving Certificate Geography Quiz on Science Quiz_1, created by PatrickNoonan on 06/16/2013.

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Science Quiz_1

Science Quiz_1

Question 1 of 10

1

According to the Theory of Evolution, what sort of variation is inherited?

Select one of the following:

  • Environmental variation

  • Genetic variation

  • Variation is not inherited

Explanation

Question 2 of 10

1

What is the most likely reason why wasps and bees have black and yellow stripes?

Select one of the following:

  • The stripes warn other animals that wasps and bees are dangerous

  • The stripes are attractive to birds and other predators

  • The stripes make them look like harmless hoverflies, so they can sneak up on their prey

Explanation

Question 3 of 10

1

In the Carbon cycle, decay happens faster when the conditions are:

Select one of the following:

  • Warm and Dry

  • Cold and Moist

  • Warm and Moist

  • Cold and Dry

Explanation

Question 4 of 10

1

What is the most likely reason why animals in hot climates have larger ears than similar animals in cold climates?

Select one of the following:

  • It is more difficult to hear in hot air, so bigger ears are needed

  • Big ears lose heat quickly, while small ears lose heat slowly

  • Big ears are useful for creating a breeze when they are flapped quickly

Explanation

Question 5 of 10

1

During the early stages of the Earth's atmosphere Nitrogen and Carbon Dioxide were the most common gases. What caused the increased in the level of oxygen?

Select one of the following:

  • Respiration

  • Photosynthesis

  • Volcanic activity

Explanation

Question 6 of 10

1

A coal-fired power station is 40% efficient. This means that:

Select one of the following:

  • 40% of the chemical energy stored in coal is transferred to electrical energy

  • 60% of the chemical energy stored in coal is transferred to electrical energy

  • 40% of the chemical energy stored in coal is transferred to the surroundings as heat

  • 60% of the chemical energy stored in coal is transferred to the surroundings as heat

Explanation

Question 7 of 10

1

The energy transferred by an electrical appliance can be calculated using this equation:

energy = power × time

How much energy is transferred by a 500 W electric drill in 30 seconds?

Select one of the following:

  • 15,000 J

  • 250 J

  • 25 J

Explanation

Question 8 of 10

1

Which piece of evidence supports the Big Bang theory?

Select one of the following:

  • The more distant galaxies are moving the slowest.

  • The more distant galaxies are moving the quickest.

  • The more distant galaxies are moving towards us.

Explanation

Question 9 of 10

1

About how long ago do scientists believe the universe began?

Select one of the following:

  • 13,700 million years

  • 1,370 million years

  • 137 million years

Explanation

Question 10 of 10

1

According to the Doppler effect, what happens to sound waves emitted at a constant pitch from a car moving towards you?

Select one of the following:

  • They move more quickly, so their pitch increases

  • Their frequency increases, so their pitch increases

  • Their wavelength increases, so their pitch increases

Explanation

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