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science proj.
| Question | Answer |
|---|---|
| which characteristic could change without changing the velocity of an object? | a. the color b. the speed c. the direction d. the acceleration |
| a ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. when these two forces become equal in magnitude, the ball will.... | a. flatten due to the forces b. slow to a stop c. fall at a constant speed d. continue to speed up |
| how much time is required for a bicycle to travel a distance of 100m at an average speed of 2 m/s? | a. 0.02 s b. 50 s c. 100 s d. 200 s |
| what is a stationary object used to detect motion called? | a. a tree b. a reference point c. a reflection d. motion |
| speed equals distance divided by which of the following? | a. size b. velocity c.time d. motion |
| the throwing back by a body or surface of light, heat, or sound without absorbing it is known as.... | a. refraction b. collision c. s-waves d. reflection> |
| naturally hot water, typically heated by subterranean volcanic activity is known as...... | a. geyser b. earthquake c. hot spring > d. volcano |
| if a fossil has 52.5g left of carbon 14 and 367.5g of carbon 12 then how old is the fossil? | a. 11460 million years b. 17190 years> c. 22920 million years d. 22920 years |
| name two things that can cause a tsunami. | a. earthquakes and boulders falling in a stream b. earthquakes and meteorites > c. boulders falling in the ocean or meteorites d. asteroids and comets |
| on a topographic map, contour lines that form a circle indicate a(n)... | a. lake b. ocean c. hill> d. depression |
| a contour interval is the... | a. difference in elevation between one contact line and the next b. difference color between one contour line and the next c. difference in rock age between one geologic unit and the next d. difference in elevation between one contour line and the ^> |
| a volume of rock of a given type and age range is? | relief or geologic unit > |
| difference between the highest and lowest elevations is? | relief> or geologic unit |
| if a topographic map has a contour interval of 10m and the map has five contour lines with the lowest elevation shown as 15m, the elevation of the highest line is..? | a. 10m b. 5m c. 15m d. 55m > |
| an elastic wave in the earth produced by an earthquake is called a...? | a. shear wave b. seismic wave > c. surface wave d. fast wave |
| an object is thought to have a region of influence surrounding it. when a second object with an appropriate property is placed in this region, a forces causes a change in motion of the object. what is this region of influence known as? | a. magnetic force b. a field > c. formula d. an electric current |
| gravitational fields exist around objects with mass, when a second mass is placed in the field, what will the two objects experience ? | a. nothing, the forces would not change b. they would be repelled away from each other c. the force of repulsion would increase d. they would be attracted toward each other > |
| when does gravitational force decreased? | a. when distance decreases b. when distance increases > c. when mass increases d. when mass stays the same |
| elastic potential energy is associated with how much an elastic object has been _____ and _____. | a. heated and dried b. held and heated c. pulled and pushed d. stretched and compressed |
| what is the work needed known as to pass through an electrical field per unit charge? | a. electrical potential energy > b. chemical potential energy |
| what are fossils ? | a. molds and casts of organisms that live today b. the preserved remains of traces of organisms that lived in the past > c. drawings of ancient animals and other organisms d. footprints or burrows of small animals that live today |
| what is stretching of rock so that it becomes thinner? | a. compression b. tension> c. shearing d. footwall |
| what type of fault has the hanging wall of a reverse fault push on top of the foot wall? | a. normal fault b. reverse fault c. strike-slip fault d. thrust fault > |
| what is a ridge-shaped fold of stratified fold of stratified rock in which the strata slope downward from the crest | a. anticline > b. syncline c. monocline d. elastic limit |
| which type of unconformity occurs when stratified rock is unlifted, eroded and new sediments from on top? | a. nonconformity b. disconformity> c |
| __________ was an Austrian monk who who conducted genetic studies using pea plants. | a. gregoor mendel > c. charles darwin c. john homologous d. jean baptiste lamarck |
| how does natural selection lead to evolution? | a. stronger offspring kill weaker members of the species b. helpful variations accumulate among surviving members of the species > c. overproduction provides food for stronger members of the species |
| in crossing a heterozygous (Cc) with a homozygous recessive (cc), what is the probability that the offspring from this cross will be homozygous recessive? | a. 25% b. 50%> c. 75% d. 100% |
| this law explains why traits whose genes are found on different chromosomes are not linked. for example you don't automatically have black hair if you have brown eyes | a. law of meiosis b. law of no strings attached c. law of segregation d. law of independent assortment > |
| mendal's law that states that organisms inherit one allele for each trait from each parent due to allele pairs separating during gamete production is called the ___________. | a. law of independent assortment b. law of superposition c. law of segregation > d. law of heredity |
| true or false: the lithosphere is changed as a result of the hydrosphere. | true > false |
| true or false: beds of sand and gravel laid down by glacial melt water are known as glacial tills. | true false > |
| how are eskers believed to have been formed? | a. seismic activity b. wind deposition c. floodplains d. streams under or in glacial ice > |
| how are kettles typically formed? | a. by blocks of ice that are separated from a glacier. the isolated blocks of ice then become partially or wholly buried in outwash. when the ice blocks eventually melted, they left behind holes or depressions that filled with water to become a lake. |
| mass wasting can happen in areas where there is a low amount of vegetation. what factors could limit mass wasting? | a. low gradient> b. high/intense water flow c. hurricanes d. high winds |
| what evidence suggests that the ancestors of whales once walked on land? | a. scientists have found fossils of whale like creatures that had legs> b. whales have a similar molecular structure to elephants c. whales walk when they swim d. whales breath through lungs |
| which type of cell reproduction is meiosis ? | a. asexual reproduction b. sexual reproduction > c. binary fission d. budding |
| during mitosis, which stage does the cell pinch into two cells? | a. prophase b. metaphase c. anaphase d. telophase > |
| what is a diagram that shows the passing down of a trial through a blood line? | a. cladogram b. punnett square c. pedigree chart> d. amino acid sequencing table |
| how are sex cells different from other body cells? | sex cells have half as many chromosomes as regular cells (or body cells) |
| Nick hypothesizes that wax has a higher melting point than chocolate. How can Nick test his hypothesis? | a.Measure the volume and weight of samples of wax and chocolate and calculate their densities. b.Heat equal masses of wax and chocolate and measure their temperatures when they start to melt.> |
| When conducting an experiment, which of the following is generally true? | a.Performing a smaller number of experimental trials makes the results more dependable. b.The number of trials performed does not affect the validity of the results. c.Performing a larger number of experimental trials makes the results more dependable.> |
| Which of the following tools can be used to view objects that are too small to be seen with the naked eye? | a. a telescope b. a magnet c. a graduated cylinder d. a microscope> |
| Mike has a glass of water. Which of the following tools could he use to measure the volume of water he has in the glass? | a. a graduated cylinder> b. a triple beam balance c. a spring scale d. a metric ruler |
| The layer of the Earth called the mantle is often described as convecting. In this context, convection is ________ | a. a step in the formation of sedimentary rock. b. a continuous cycle in the Earth's interior.> c. a process that keeps the mantle stationary. d. a process that occurs on the Earth's surface. |
| Which of the following is true about convection in Earth's mantle and tectonic plate motion? | a. Evidence suggests that plate motion and mantle convection are related processes> b. Plate motion and mantle convection do not relate to each other in any way |
| In the Earth's mantle, heat is transferred in large convection currents. Within these currents, | a. cooler and hotter rock rise but do not sink. b. cooler rock rises and hotter rock sinks. c. hotter and cooler rock sink but do not rise. d. hotter rock rises and cooler rock sinks.> |
| Which of the following is most accurate in helping pinpoint a time period on the geologic time scale during which a rock layer was formed? | a. heat flow b. sandstone c. index fossils> d. cave deposits |
| Sexual reproduction requires cells to undergo ______, whereas only _______ is necessary for asexual reproduction. | a. meiosis; mitosis> b. mitosis; fertilization c. mitosis; meiosis d. fertilization; meiosis |
| A cell divides to form two cells during a process called _______ | a. mitosis.> b. chemiosmosis. c. photosynthesis. d. protein synthesis. |
| Which of the following is a characteristic of meiosis but not of mitosis? | a. produces four daughter cells> b. separates one existing cell into two identical new cells c. involves only one cell division d. involves only single-celled organisms |
| A magnet's north and south poles | a. have opposite charges.> b. are negatively charged. c. are positively charged. d. have no charge. |
| A ball is dropped from a tower. From whose reference point is the ball approaching the observer? | a. a person standing on top of the tower b. a person in an airplane flying above the tower c. a person on the ground driving rapidly away from the tower. d. a person standing on the ground beneath the tower> |
| John and Daniel are playing tug-of-war together. John is exerting 10 N of force. Daniel is exerting 12 N of force. What is their net force? | a. 2 N in Daniel's direction> b. 22 N in Daniel's direction c. 2 N in John's direction d. 22 N in John's direction |
| _______ measures an object's change in position per unit time. | a. Acceleration b. Speed> c. Distance d. Force |
| Magnetic potential energy is dependent on ______ | a.the distance a magnet has moved from its resting position. b.the mass of a magnet and how fast the magnet is moving. c.the shape and size of a magnet. d.the position of magnetic objects relative to one another.> |
| what are the four main branches of science ? | physics, chemistry,& biology |
Created by:
briannahannoush