Physics

A force acting on an object does no work if a machine is used to move the object. the force is not in the direction of the object’s motion. the force is greater than the friction of motion. the object accelerates

Kevin Sutter

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Which of the following examples describes an increase in potential energy? A. a bicycle going down a hill B. a basketball falling through a net C. a rollercoaster moving down the track D. a paint can being carried up a ladder

Ronald Miller

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Public transportation is the most fuel efficient way to get to your local store.

Whitney Matthews

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The shape of a protein molecule directly determines its

Cynthia Baker

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Which process would correctly calculate the frequency of a wave? a. dividing speed by wavelength b. dividing frequency by wavelength c. multiplying frequency by period d. dividing wavelength by period

Jodi Brooks

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A convex mirror is placed to the right of an object. The image formed by the mirror will be a A.) Real Image that appears on the right side of the mirror. B.) Real Image that appears on the left side of the mirror. C.) Virtual Image that appears on the right side of the mirror. D.) Virtual Image that appears on the left side of the mirror.

Craig Stewart

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Which of the following would most likely have grains cemented together? a. marble c. limestone b. schist d. diorite

Craig Stewart

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Because of convection, the warmest air in a room A. spreads out in all directions. B. rises toward the ceiling. C. transfers heat to the walls. D. sinks toward the floor.

Tara Andrews

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Which describes both cyclones and anticyclones? a. Both produce wet, stormy weather. b. Both are measured by changes in air pressure. c. Both move air in an upward direction. d. Both occur at the same time in the same location.

Kevin Sutter

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Where is the chart option found in the Excel application?

William Cain

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Which measurement is equivalent to 350 milliliters?

Ramon Kelly

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Which statement best describes an antacid? a)An antacid increases the amount of hydrogen ions b)An antacid neutralizes excess hydrogen ions. c)An antacid decreases the level of hydrogen ions.

Kathy Robinson

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Combine your results from part h & part i to find the net work wnet done on the sled.

Kathy Robinson

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Explain how an oil spill devastates marine life when animals get covered by the toxic sludge

Jessie Thompson

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A pre-trip inspection will help you ____________. A. find problems that could cause a collision or breakdown B. avoid a post-trip inspection C. know how far you must travel D. save money on fuel

Chelsea Hayes

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If the change in velocity increases, what happens to the acceleration during the same time period?

Timothy Norman

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The relatively small, rocky bodies generally found orbiting between mars and jupiter are known as _____. meteoroids satellites comets asteroids

Roger Moore

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CFC, Freon, and aerosols are becoming less commonly used because they A) cause acid rain. B) harm the ozone layer. C) have radioactive waste. D) cause Alzheimer's disease.

Kevin Sutter

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Force is based upon both mass and acceleration. a. True b. False

Justin Parker

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1. Driving at slower speeds than traffic flow _____________ . A. is a good way to save fuel B. may impede other vehicles on the road that are traveling at normal and safe speeds C. cannot result in a ticket for driving too slowly D. Both B and C

Justin Parker

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If your hood suddenly flies up, which of the following should you avoid? 1. Activating your hazard lights 2.Pulling off the road as soon and as safely as possible 3.Trying to look in the gap under the hood to see 4.Accelerating to move off the road as quickly as possible

Megan Page

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Which statement best represents scientific laws? (2 points) Scientific laws are statements that contain scientists' opinions of how the world works. Scientific laws are factual statements that explain why certain natural phenomena occur. Scientific laws are theories that have been tested, proven, and adopted as laws. Scientific laws are descriptions of observed phenomenon generally accepted as facts.

Jeremy Wood

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What shape marks the pegasus constellation?

Amanda Johnson

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How many points can opposite rays have in common? zero, one, two, two or more

Chelsea Hayes

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The available source of charge that pushes a charge through a circuit is A. alternating current. B. direct current. C. voltage. D. resistance.

Victoria Fowler

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Which of the following is an example of kinetic energy? a boy resting on a park bench a book sitting on a shelf a rubber band stretched as far as it can go a swing moving back and forth

Ramon Kelly

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The radius of Venus is 3760.4 miles. What is the approximate surface area of Venus, to the nearest whole number?

Nicholas Rivera

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Both gamma rays and x-rays are used to see inside the body. Which one is used to make images of bones?

Roger Moore

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Scientific advances have led to decreased energy efficiency and waste reduction. please select the best answer from the choices provided t f

Jodi Brooks

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A blank is any disturbance that carries energy from one place to another through matter and space.

Kevin Sutter

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Energy from the sun reaches Earth mostly by........... A)Conduction B)Convection C) Radiation D) Thermal Expansion.

William Cain

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Solar cells convert what type of energy into electrical energy? A. chemical B. thermal C. nuclear D. electromagnetic

Eric Morgan

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As a tile falls from the roof of a building to the ground its momentum is conserved.

Theresa Perry

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Hunter-gatherer societies had the benefit of _____. A-good farming techniques B-their understanding of germs C-sophisticated tools D-knowledge of the environment

Donald Ward

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A sound that's produced by a single wave at a constant frequency and with no overtones is called a. a pure sound. b. a mellow sound. c. an average sound. d. a discordant sound.

Kathy Robinson

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Which example best describes mechanical advantage?. A) A fixed pulley changes the direction that you pull. B) Greasing a surface reduces friction. C) A longer lever helps lift more weight.

Dana Keller

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Rubies are used in electronics

Rodney Fox

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A burner on a stove produces what? a. Temperature b. thermal energy c. Hotness d. fire energy

Justin Parker

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Why are hurricanes considered more damaging than tornadoes when tornados have stronger winds? a. Hurricanes only strike coastlines while tornados strike coasts and inland. b. Hurricanes also cause flooding and occur over a broader area. c. Tornadoes move more slowly than hurricanes. d. Tornadoes only occur inland, away from coastlines.

Ramon Kelly

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You wash the dishes. when you let the water down the drain, where is the water flowing the fastest?

Whitney Matthews

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A diamond is underwater; A light ray enters one face of the diamond, then travels at an angle of 30 degrees with respect to the normal. What was the ray's angle of incidence on the diamond? The index of refraction of water is nwater=1.33, and the index of refraction of diamond is ndiamond=2.42. Finally, apply Snell's law and find the ray's angle of incidence θ1 on the diamond.

Zach Chandler

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