An increased flow of electric current through a thermistor element indicates a __ temperature. Higher. Lower.
What is the heat energy involved in the change of state, or phase, in water? mechanical heat sensible heat radiant heat latent heat body heat
How long is the string of buoys? 20 meters 10 meters 14 meters 28 meters
What quantum number determines the energy and size of an orbital? a) The angular quantum number b) The spin quantum number c) The magnetic quantum number d) The principal quantum number
Power can surge when coming back on, so you should leave everything plugged in. True False
Heat is thermal energy that matter contains. transfers. both of these none of the above
Which law of thermodynamics tells us what is most probable in nature? 0^thlaw 1^stlaw 2^ndlaw 3^rdlaw
8) Which of the following is suitable as a minimum shielding for gamma radiation? A) regular clothing B) lab coat C) gloves D) lead E) paper
Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don't stick. He guesses that the door of the refrigerator is made of a nonmagnetic substance What stage of scientific investigation does his guess represent? A. ask questions B. construct a hypothesis C. explain the results D. make observations
What is the temperature at which all molecular movements stop called? A. absolute zero B. standard temperature C. boiling point D. freezing point
Which statement about temperature is correct? Temperature can measure the kinetic energy between two objects. Temperature can measure the heat movement between two objects. Temperature can measure the potential energy between two objects. Temperature can measure the mass transfer between two objects.
Reasoning:Explain how energy is transferred through the water.
What happens to an object when it absorbs light? A. It gets colder B. It gets warmer C. It changes material D. It becomes transparent
What happens to the total momentum of two objects after a collision? It remains the same It decreases It becomes zero It increases
14. What is the net force acting upon an object which is subjected to the following forces? 3 Newtons South 3 Newtons North 5 Newtons East 7 Newtons West 2 Newtons West 18 Newtons North 6 Newtons West 18 Newtons South
You should write the definition of the key vocabulary down here. Balanced forces Unbalanced forces Equilibrium Constant velocity Force Net force Mass Inertia Acceleration Directly proportional Inversely proportional Newton's 1st law of motion Newton's 2nd law of motion Newton's 3rd law of motion Weight
18. A force $F(x)=10x(inN)$ acts over a displacement from $x=0$ to $x=3$ m. What is the work done?
17. How much power is exerted when you lift a 60-kg rock to a height of 25 m in 30 seconds?
A 60 kg sprinter is running at a velocity of $8m/s$ during a race Calculate the sprinter's kinetic energy. 240J 480 J 3,480J 1,920 J
When using a megger to check insulation resistance to ground, which of the following would be an acceptable minimum resistance? a. $1K\Omega $ b. $5K\Omega $ c. $1M\Omega $ d. $25\Omega $
