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Worksheets1st Semester Final Exam
Total questions: 38
Worksheet time: 20mins
What is the first step of the scientific method?
Form a hypothesis
Draw a conclusion
Ask a question
Analyze results
What is the independent variable in an experiment?
The variable that changes
The variable being measured
The constants
The final result
A good hypothesis should be:
A random guess
An opinion
Testable
A proven fact
Which step comes LAST in a scientific investigation?
Testing the hypothesis
Forming a question
Reporting conclusions
Identifying variables
Which of the following is a chemical change?
Melting ice
Breaking a pencil
Burning paper
Mixing sand and water
Which observation indicates a chemical reaction has occurred?
The smell from rotting eggs
Salt dissolving in Water
Melting Ice
Cutting Paper
Which are examples of a physical change?
Rusting
Cutting Paper
Freezing Water
Digesting Food
Which statement is TRUE about chemical changes?
They create new substances
They are always reversible
The substance stays the same
No energy changes occur
Newton’s First Law is also known as the Law of:
Action-reaction
Acceleration
Gravity
Inertia
Which situation describes Newton’s Third Law?
A book stays at rest until pushed
A car speeds up when the gas pedal is pressed
A diver jumping off a raft, where the diver pushes the raft backward and the raft pushes the diver forward.
A heavier object needs more force to move
Why did the blue car win?
It is heavier than the yellow car.
The pink surface is rougher than the blue surface.
It had little to no friction to resist acceleration.
Its ramp is higher.
Which factor does NOT affect the amount of friction?
Surface texture
Force pressing surfaces together
Type of material
Temperature of a room
The weakest wave on the electromagnetic spectrum is the ___________ wave.
ultraviolet
radio
gamma
Microwaves
A pencil in a glass of water looks bent because water __________ light waves.
reflects
refracts
Which electromagnetic wave has the highest frequency?
Radio
Visible light
Gamma rays
Microwaves
What determines the loudness of a sound?
Amplitude
Frequency
Wavelength
Wave speed
Mitosis results in:
4 unique cells
2 identical cells
2 unique cells
4 identical cells
Meiosis is used for:
Growth
Repair
Producing sex cells
Asexual reproduction
Which statements are true?
Meiosis produces genetically varied gametes
Meiosis creates genetically identical cells
Mitosis produces body (somatic) cells
Meiosis is used only for healing injuries
Which type of cell reproduction is responsible for producing four genetically identical gametes?
Mitosis
Meiosis
Both
Neither
Phenotype refers to:
Physical appearance
Behavior
Which of the following represents a heterozygous genotype?
BB
bb
Bb
b
In a Punnett square where T = tall (dominant) and t = short (recessive), which genotype will be SHORT?
TT
Tt
tt
tT
In a pedigree chart, a shaded symbol usually represents:
A family pet
A carrier of the trait
A person affected with the trait
A person who is deceased
A mother with blood type AO and a father with type BO could have a child with which blood type?
Only AB
Only O
A, B, AB, or O
Only A or B
The parents of the offspring are:
Heterozygous r White.
Homozygous Purple
Homozygous White
Heterozygous Purple
A male is represented on a pedigree chart as a:
Circle
Triangle
Square
Shaded shape only
The offspring are:
Two Homozygous Purple and Two Heterozygous White.
One Heterozygous White, and Three Homozygous Purple.
1 Homozygous Purple, 2 Heterozygous Purple, 1 Homozygous White
Three Heterozygous Purple and One Homozygous White.
Which of the following is an example of a chemical change?
Cutting paper
Melting ice
Burning paper
Dissolving sugar
There are family members who are affected with the sickle cell anemia trait. Who are affected in Generation 3?
Numbers 3, 4 and 5
One female and two males
Numbers 3 and 5 only
Two females and Two males
Which of the following is an example of a physical change?
Burning wood
Rusting iron
Cutting hair
Baking a cake
What is a characteristic of chemical changes?
They create new substances
They are reversible
They do not change the substance
They only change the state
Which of Newton's Laws describes an object remaining at rest unless acted on by an unbalanced force and/or and object remaining in motion unless acted on to stop by a force?
1st
2nd
3rd
4th
Who are the children of the parents in generation 1?
Numbers 2, 3, 4 and 6.
Numbers 1, 2 and 4.
Numbers 3 and 5.
Numbers 2, 3 and 5.
If the wavelengths of a wave are really close together it means....
it is a low frequency wave.
it is a high frequency wave.
the amplitude is high.
the amplitude is low.
The higher the amplitude of a sound wave, the __________ the sound.
louder
softer
Which phenotype is produced by the genotype ii?
A Type Blood
B Type Blood
O Type Blood
AB Type Blood
Fill in the blank: The genotype IAIB produces ________ blood type.
AB Type Blood
A Type Blood
B Type Blood
O Type Blood
