1 Which state of matter is the most common in the universe?A) solid B) gas C) liquid D) plasma 2 As water cools below 4°C, what happens?A) it changes to an amorphous solid B) it contracts C) it melts D) it expands 3 What causes air pressure?A) air particles vaporize B) air particles flow through an object C) air particles hit an object D) air particles suck away from an object 4 What are the four stages of matter in order from least kinetic energy to most kinetic energy?A) plasma, gas, liquid, solid B) plasma, solid, gas, liquid C) solid, liquid, gas, plasma D) solid, liquid, plasma, gas 5 What are the particles in plasma?A) free nuclear particles of protons, neutrons, and electrons B) positively charged ions and negatively charged electrons C) negatively charged ions and positively charged protons D) free neutrons 6 __________ have no definite shape and flow.A) Crystals B) Solids C) Metals D) Fluids 7 Pressure is measured as __________.A) FA B) F/A C) A/F D) F + A 8 A particle is moving so fast in a liquid that it escapes the liquid's cohesive force. This is an example of __________.A) condensation B) sublimation C) evaporation D) melting 9 Surface tension is a result of __________ in a fluid.A) nuclear forces B) adhesive forces C) cohesive forces D) kinetic forces 10 __________ is the force that acts between particles of different substances.A) Rehesion B) Cohesion C) Elasticity D) Adhesion 11 Which of the following does pressure in water not depend on?A) depth B) density C) shape D) gravity 12 The buoyant force is in which direction?A) toward higher pressures B) upward C) circular D) downward 13 In the figure below, if the chunk of steel were cut in half and one of the pieces were placed in the same liquid, how would it behave?
(4.0K)A) It would float mostly submerged. B) It would sink to the bottom of the container. C) There is insufficient information to answer the question. D) It would float almost entirely above the surface. 14 If you wanted to use a setup like the one in the figure below to create an upward force triple that of the downward force you exert, which of the following combination of piston radii could accomplish this?
(7.0K)A) r 1 , 3 m; r 2 , 1 mB) r 1 , 0.577 m; r 2 , 1 mC) r 1 , 0.333 m; r 2 , 1 mD) r 1 , 1.73 m; r 2 , 1 m15 To rise in water, a fish uses its air bladder to __________.A) displace more water B) increase water pressure C) increase air pressure D) displace less water 16 __________ states that any change in pressure applied to any point on a confined fluid is transmitted undiminished throughout the fluid.A) Boyle's law B) Pascal's principle C) Galileo's law D) Dalton's law 17 If you wanted to use a setup like the one in the figure bellow to create an upward force triple that of the downward force you exert, which of the following combination of piston areas could accomplish this?
(7.0K)A) A 1 , 6 m2 ; A 2 ,10 m2 B) A 1 , 6 m2 ; A 2 , 18 m2 C) A 1 , 6 m2 ; A 2 , 2 m2 D) A 1 , 6 m2 ; A 2 , 8 m2 18 What type of buoyancy results in a feeling of weightlessness?A) positive B) neutral C) changing D) negative 19 Why does ice float?A) It is an amorphous solid. B) It has strong cohesive properties. C) It has a lower density than water. D) It has a higher density than water. 20 Which is an example of Pascal's principle?A) a straw B) hydroplaning wheels C) hydraulic brakes D) a siphon 21 According to Archimedes' principle, an object immersed in fluid has an upward force on it equal to __________.A) the weight of the fluid displaced B) the weight of all the fluid in the container C) the weight of the fluid displaced minus the weight of the object D) the weight of the object 22 What happens to a bimetallic strip when it is heated?A) it becomes elastic B) its cohesive properties decrease C) it bends D) it contracts 23 Why is it important to take thermal expansion into account when building bridges?A) so the bridge will not move at all B) so the bridge materials expand and contract with the changes in weather C) so the bridge materials can change state as the weather changes D) so the bridge materials don't deteriorate 24 Amorphous solids have no __________.A) volume B) liquid phase C) crystalline pattern D) shape 25 In terms of the kinetic-molecular theory, why do substances expand when heated?A) The particles vibrate less and push other particles away. B) The particles on the surface vibrate faster. C) The particles vibrate more, causing air pressure to compress the substance. D) The particles vibrate more and push other particles away. 26 Which example demonstrates elasticity?A) a snapping rubber band B) a bent iron bar C) a broken stick D) a melted stick of butter 27 If an iron bar expands 0.1 cm when heated 20°C, how much would it expand if it were heated 40°C?A) 1 cm B) 0.1 cm C) 0.05 cm D) 0.2 cm