Forces
When a force is applied to an object, which of the following factors affects the object's acceleration?
a) Mass of the object
b) Direction of the force
c) Shape of the object
d) Temperature of the object
a) Mass of the object
What type of rock is formed from the cooling and solidification of magma or lava?
a) Sedimentary rock
b) Metamorphic rock
c) Igneous rock
d) None of the above
c) Igneous rock
About how many cells does the human body have?
a) 300,000
b) 3 billion
c) 30,000
d) 3 trillion
d) 3 trillion
Which type of reproduction involves the fusion of gametes from two parents?
a) Asexual reproduction
b) Sexual reproduction
c) Binary fission
d) Budding
b) Sexual reproduction
What is a fossil?
a) A living organism
b) An ancient organism preserved in rock or sediment
c) A type of rock
d) A type of mineral
b) An ancient organism preserved in rock or sediment
What type of force holds the electrons in an atom?
a) Electromagnetic force
b) Gravitational force
c) Nuclear force
d) Frictional force
a) Electromagnetic force
Which type of boundary is associated with the formation of mountain ranges and earthquakes?
a) Convergent boundary
b) Divergent boundary
c) Transform boundary
d) Subduction boundary
a) Convergent boundary
Which structure contains the cell's genetic material and controls cellular activities?
a) Ribosome
b) Nucleus
c) Lysosome
d) Chloroplast
b) Nucleus
Which of the following is an example of asexual reproduction?
a) Fertilization
b) Budding
c) Meiosis
d) Pollination
b) Budding
What is adaptation?
a) A change in an organism's DNA
b) A trait that helps an organism survive and reproduce in its environment
c) The process of becoming extinct
d) The process of evolving wings
b) A trait that helps an organism survive and reproduce in its environment
Which of Newton's laws states that an object at rest will stay at rest unless acted upon by an external force?
a) Newton's First Law
b) Newton's Second Law
c) Newton's Third Law
d) None of the above
a) Newton's First Law
Which process is primarily responsible for shaping Earth's surface over long periods of time?
a) Erosion
b) Volcanism
c) Plate tectonics
d) Weathering
c) Plate tectonics
Which organelle is responsible for protein synthesis?
a) Golgi apparatus
b) Mitochondria
c) Endoplasmic reticulum
d) Ribosome
d) Ribosome
What is the purpose of reproduction in living organisms?
a) To grow bigger
b) To produce offspring
c) To eat food
d) To learn new things
b) To produce offspring
Which of the following is a driving force of evolution?
a) Genetic drift
b) Artificial selection
c) Natural selection
d) All of the above
d) All of the above
Which of the following is an example of a non-contact force?
a) Friction
b) Tension
c) Gravity
d) Magnetic force
d) Magnetic force
Which of the following is an example of a gradual change to Earth's surface?
a) Earthquake
b) Volcanic eruption
c) Weathering
d) Tsunami
c) Weathering
What is the function of the cell membrane?
a) Storage of genetic material
b) Regulation of cellular processes
c) Synthesis of proteins
d) Production of energy
b) Regulation of cellular processes
Which reproductive structure in a flower contains the ovules and is the female part?
a) Pistil
b) Stamen
c) Sepal
d) Petal
a) Pistil
Which of the following is an example of natural selection?
a) A farmer breeding only the largest pigs on his farm
b) A predator catching the slowest prey
c) A plant growing taller to reach sunlight
d) All of the above
b) A predator catching the slowest prey
If an object is moving with constant velocity, what can be said about the net force acting on it?
a) Net force is zero
b) Net force is non-zero
c) Net force is negative
d) Net force is positive
a) Net force is zero
What is the primary cause of soil erosion?
a) Wind and water
b) Volcanic activity
c) Plate tectonics
d) Glacial movement
a) Wind and water
Which organelle is responsible for breaking down waste materials and cellular debris?
a) Endoplasmic reticulum
b) Lysosome
c) Vacuole
d) Ribosome
b) Lysosome
Which of the following is NOT a method of seed dispersal?
a) Wind
b) Water
c) Eating by animals
d) Staying attached to the parent plant forever
d) Staying attached to the parent plant forever
Who is credited with proposing the theory of evolution by natural selection?
a) Charles Darwin
b) Gregor Mendel
c) Albert Einstein
d) Isaac Newton
a) Charles Darwin