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Science Yearly

Science Yearly

Question 1 of 36

1

How fast you are moving is

Select one of the following:

  • Speed

  • Velocity

  • Acceleration

Explanation

Question 2 of 36

1

How fast you are moving in which direction is

Select one of the following:

  • Speed

  • Velocity

  • Inertia

  • Acceleration

Explanation

Question 3 of 36

1

Change of speed or direction is

Select one of the following:

  • Acceleration

  • Intertia

  • Velocity

  • Speed

Explanation

Question 4 of 36

1

Fill the blank space to complete the text.

The tendency of an object to remain still or moving at a constant speed is

Explanation

Question 5 of 36

1

A heavy and light object are dropped from the same height. Which object hits the floor first?

Select one of the following:

  • Heavy Object

  • Light Object

  • They reach the floor at the same time

  • Depends on gravity

Explanation

Question 6 of 36

1

The formula for speed is:

Select one of the following:

  • Velocity divided by acceleration

  • Distance divided by time

  • Acceleration divided by time

  • Time divided by acceleration

Explanation

Question 7 of 36

1

You apply force on two objects. The second object is 4 times heavier. How does the second object accelerate compared to the first?

Select one of the following:

  • Accelerates 4 times greater

  • Accelerates 4 times less

  • Accelerates the same

  • Stops altogether

Explanation

Question 8 of 36

1

A force accelerates a mass of 2kg with an acceleration. If the same force is applied to mass 1kg, then the acceleration will be

Select one of the following:

  • Double

  • Half

  • The Same

  • Zero

Explanation

Question 9 of 36

1

Fill the blank spaces to complete the text.

Difference Between Mass and Weight
Mass is the amount of . It does depend on . Weight is a . It is your mass times . It is measures in (N).

Explanation

Question 10 of 36

1

What is the mass number of an atom?

Select one of the following:

  • The weight of the atom

  • Number of compounds in the atom

  • Length of atom

  • Number of protons + neutrons

Explanation

Question 11 of 36

1

Fill the blank space to complete the text.

The atomic number of an atom is the number of .

Explanation

Question 12 of 36

1

Fill the blank space to complete the text.

If the mass of C atom is 12 and O atom is 16, then the mass of carbon dioxide is .

Explanation

Question 13 of 36

1

Fill the blank spaces to complete the text.

-The charge of a proton is and its mass is
-The charge of a neutron is and its mass is
-The charge on an electron is and its mass is

Explanation

Question 14 of 36

1

Fill the blank spaces to complete the text.

The mass number of aluminium is
The atomic number of aluminium is
The electron configuration of aluminium is

Explanation

Question 15 of 36

1

Most of the volume of the atom is taken up by

Select one of the following:

  • The nucleus

  • Electrons

  • Empty space

  • Mass number

Explanation

Question 16 of 36

1

What is the name for similar atoms that have a different numbers of neutrons?

Select one of the following:

  • Ions

  • Isotopes

  • Molecules

  • Radioactive atoms

Explanation

Question 17 of 36

1

What is the correct statement to describe the difference between a sex cell and a normal cell?

Select one of the following:

  • Normal cells have 1/2 the chromosomes of a sex cell

  • Normal cells have the same number of chromosomes as sex cells

  • Sex cells are produced by mitosis

  • Sex cells have 1/2 the number of chromosomes of normal cells

Explanation

Question 18 of 36

1

Genes are only found in some cells of the body

Select one of the following:

  • True
  • False

Explanation

Question 19 of 36

1

A gene is a small piece of DNA

Select one of the following:

  • True
  • False

Explanation

Question 20 of 36

1

Genes are found in the nucleus

Select one of the following:

  • True
  • False

Explanation

Question 21 of 36

1

There are two different genes (alleles) for each characteristic

Select one of the following:

  • True
  • False

Explanation

Question 22 of 36

1

Fill the blank space to complete the text.

The father of genetics is

Explanation

Question 23 of 36

1

Phenotype is the appearance an individual has for a particular characteristic

Select one of the following:

  • True
  • False

Explanation

Question 24 of 36

1

Fill the blank spaces to complete the text.

The last pair of chromosomes out of the pairs found in human cells, are chromosomes. Males have the sex chromosomes and females have

Explanation

Question 25 of 36

1

Fill the blank space to complete the text.

Genes are composed of

Explanation

Question 26 of 36

1

Fill the blank spaces to complete the text.

The scientists who discovered the shape of DNA to be a double helix were and (In alphabetical order).

Explanation

Question 27 of 36

1

In biological terms, the organism that is most successful within its population is one that

Select one of the following:

  • Captures the most food

  • Produces the most surviving offspring

  • Occupies the most prosperous niche

  • Grows largest and fastest

Explanation

Question 28 of 36

1

Fill the blank spaces to complete the text.

The theory of states that come from common , small changes over time result in diversity of .
Word Bank: organisms, diversity, evolution, ancestors

Explanation

Question 29 of 36

1

Which of the following statements about mutations is false

Select one of the following:

  • Mutations are changes to genes

  • Mutations are always harmful to an organism and result in sickness or death

  • Some mutations result in changes that are beneficial to an organism

  • Mutations to genes are not passed onto offspring

Explanation

Question 30 of 36

1

According to Darwin's theory of evolution:

Select one of the following:

  • A population can change over time in response to environmental pressures

  • An organism can evolve during its lifetime

  • All organisms have an equal chance of producing offspring

  • All organisms have an equal chance of surviving

Explanation

Question 31 of 36

1

Which of the following statements is true

Select one of the following:

  • Natural selection occurs in opposition to evolution

  • Natural selection is a process whereby genes are selected randomly for preservation to the next generation.

  • Natural selection favours individuals that reproduce more than others

  • Natural selection can be used by farmers to generate organisms with desirable trains

Explanation

Question 32 of 36

1

Fill the blank space to complete the text.

The process of promoting certain traits by breeding members with those traits is selection

Explanation

Question 33 of 36

1

Fill the blank spaces to complete the text.

The two main components of natural selection are and (alphabetical)

Explanation

Question 34 of 36

1

Fill the blank spaces to complete the text.

Newton's First Law states that an object will remain at or in uniform motion in a straight line unless acted upon by an
Newton's Second Law states that is produced when a acts on a . The greater the mass (of the object being accelerated) the greater the amount of needed (to accelerate the object). The formula created from this was
Newton's third law states that for every , there is an and opposite

Explanation

Question 35 of 36

1

Fill the blank space to complete the text.

There are chromosomes in a normal call for people

Explanation

Question 36 of 36

1

Fill the blank space to complete the text.

DNA stands for acid

Explanation

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