How fast you are moving is
Speed
Velocity
Acceleration
How fast you are moving in which direction is
Inertia
Change of speed or direction is
Intertia
The tendency of an object to remain still or moving at a constant speed is
A heavy and light object are dropped from the same height. Which object hits the floor first?
Heavy Object
Light Object
They reach the floor at the same time
Depends on gravity
The formula for speed is:
Velocity divided by acceleration
Distance divided by time
Acceleration divided by time
Time divided by acceleration
You apply force on two objects. The second object is 4 times heavier. How does the second object accelerate compared to the first?
Accelerates 4 times greater
Accelerates 4 times less
Accelerates the same
Stops altogether
A force accelerates a mass of 2kg with an acceleration. If the same force is applied to mass 1kg, then the acceleration will be
Double
Half
The Same
Zero
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).
What is the mass number of an atom?
The weight of the atom
Number of compounds in the atom
Length of atom
Number of protons + neutrons
The atomic number of an atom is the number of .
If the mass of C atom is 12 and O atom is 16, then the mass of carbon dioxide is .
-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
The mass number of aluminium is The atomic number of aluminium is The electron configuration of aluminium is
Most of the volume of the atom is taken up by
The nucleus
Electrons
Empty space
Mass number
What is the name for similar atoms that have a different numbers of neutrons?
Ions
Isotopes
Molecules
Radioactive atoms
What is the correct statement to describe the difference between a sex cell and a normal cell?
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
Genes are only found in some cells of the body
A gene is a small piece of DNA
Genes are found in the nucleus
There are two different genes (alleles) for each characteristic
The father of genetics is
Phenotype is the appearance an individual has for a particular characteristic
The last pair of chromosomes out of the pairs found in human cells, are chromosomes. Males have the sex chromosomes and females have
Genes are composed of
The scientists who discovered the shape of DNA to be a double helix were and (In alphabetical order).
In biological terms, the organism that is most successful within its population is one that
Captures the most food
Produces the most surviving offspring
Occupies the most prosperous niche
Grows largest and fastest
The theory of states that come from common , small changes over time result in diversity of . Word Bank: organisms, diversity, evolution, ancestors
Which of the following statements about mutations is false
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
According to Darwin's theory of evolution:
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
Which of the following statements is true
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
The process of promoting certain traits by breeding members with those traits is selection
The two main components of natural selection are and (alphabetical)
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
There are chromosomes in a normal call for people
DNA stands for acid
