Which of the following is an example of what happens when water freezes? A. Ice formed floats B. Ice formed sinks C. Ice does not form
What is a cloud of gas and dust in space, often where stars are born? square
What receives radio waves from space objects such as quasars? GPS equipment Landsat satellites VI BI equipment navigation satellites
Which term is described when measuring the number of liters of gas trapped in a bottle? pressure mass volume horespower
The Sun fuses: helium into hydrogen hydrogen and methane hydrogen into oxygen helium and oxygen
Water has the property of having a high specific heat. Which of the choices represents this property? Water in lakes and streams flows to the oceans faster causing more erosion. All marine animals can live at any ocean depth because the water is the same temperature. Pond water cools down quickly at night causing animals to come out of hiding. Pond water temperatures change little from day to night so pond organisms aren't exposed to extreme temperatures differences.
Calculate the resistance of a 600 kcmil copper conductor at 75^circ C given: Kvalue=12.6 at 75^circ C and length=4473feet (Round the FINAL answer to three decimal places.)
12. Which metric units are commonly used to measure, length, volume, and mass. (You should lure a total of 3 answers) square
A measurement of how fast an object is moving Speed Acceleration Vector Mass
An object travels 100 m North then 50 m South. What is its total displacement (not distance)? 50 m North 50 m South 150 m 150 m North
What is the relationship between velocity and acceleration? Acceleration is the change in velocity over time. Velocity is the change in acceleration over time. Velocity and acceleration are equal and opposite. Velocity and acceleration have nothing to do with each other.
19. The process by which atomic nuclei spontaneously decay is called relative dating radioactivity erosion deposition 20. The time it takes for 50 percent of the nuclei in a radioactive sample to decay to its stable isotope is called the daughter product geologic time the half-life the half-time 21. The scientist who developed the theory of evolution was Harry Hess James Hutton Charles Darwin William Smith
Radloactive nuclel undergo decay because they are unstable. a TRUE b FALSE
Which of the following would cause a change in the speed of a sound wave? a the wave being made by a larger vibration b the wave moving through water C the wave changing medium from a gas to a liquid d the wave being made by a smaller vibration e none of the above
A man pulls a vacuum forward 13.6 m with a force of 33.9 N at a $55.0^{\circ }$ angle. How much work is being done to the vacuum by the man? $W=[?]J$
Select the cause of evaporation. Waves from the ocean Energy in the clouds Heat from the Sun Rain on the ground
True/False: The mass of the object affects the rate at which it falls. True False
If more force pushes two surfaces together, then the friction between the surfaces will __ stay the same increase decrease
Which of the following is the ideal way to apply pressure onto pedals? Gently at first and then with full force Stomping with force, so it reacts With your entire body weight behind it By pressing gradually
Select all of the types of electromagnetic waves that are ionizing radiation. gamma infrared microwave ultraviolet X-ray
