Presentation on theme: "Final Exam Review Game. Which of the following is NOT the result of a chemical change? A) digested food B) rusted metal C) ground flour D) soured milk."— Presentation transcript:
Which of the following is NOT the result of a chemical change? A) digested food B) rusted metal C) ground flour D) soured milk
What chemical property is responsible for iron rusting? A) conductivity B) non-flammability C) reactivity with oxygen D) flammability
Which of the following would be the easiest to start moving? A) a cart loaded with many sacks of potatoes B) an empty cart with no potatoes C) a cart loaded with one potato D) a cart loaded with two potatoes
Why would molding clay be considered a physical change? A) The clay changes only its state of matter. B) The clay changes its identity. C) The clay changes its composition D) The clay changes only its shape.
In a solid, the particles? A) overcome the strong attraction between them. B) slide past each other. C) move independently of one another. D) vibrate in place.
What is the same as the melting point of salt? A) its condensation point B) its boiling point C) its sublimation point D) its freezing point
What pure substance forms when two elements chemically combine? A) a compound B) an element C) a solution D) a mixture
Which is NOT a way to reduce friction? A) sanding with sandpaper B) using ball bearings C) ground flour D) soured milk
Which of the following does NOT describe weight? A) can be measured in newtons B) is constant C) changes as gravitational force changes D) is a measure of gravitational force
Which is an example of friction that is helpful? A) holes developing in your socks B) the erosion of soil by wind C) tires moving a car forward on a road D) car engine parts wearing out
When a mover puts furniture on a dolly with wheels, which type of friction is the mover using to make his job easier? A) gravitational friction B) sliding kinetic friction C) static friction D) rolling kinetic friction
When something changes position, what is it doing? A) It is a reference point. B) It is moving. C) Nothing. D) It is static.
What feature of an object does NOT affect air resistance? A) Its speed B) Its shape C) its size D) Its chemical composition
Which is true about the reaction force of a chair you are sitting on? A) The force is equal to your weight. B) The force is determined by many factors. C) The force varies. D) The force is greater than your weight.
Which of the following is the equation for Newtons second law of motion? A) F=m x a B) m=a x F C) a = m x F D) m = F x a
Which is a common unbalanced force acting on objects in motion? A) acceleration B) friction C) inertia D) speed
In which situation is a person doing work on an object? A) A student walks while wearing a backpack that weighs 15 N. B) A worker holds a box 1m off the floor. C) A school crossing guard raises a stop sign that weighs 10 N D) A man exerts 350 N force on a rope attached to a house.
Which of the following is a compound machine? A) screw B) first class lever C) block and tackle pulley D) wheel and axle
When a machine increases the size of the force exerted, what happens to the distance? A) it must decrease B) it must increase C) it must double D) it must stay the same
Which type of energy makes a light bulb feel warm? A) light energy B) thermal energy C) nuclear energy D) electrical energy
When is the potential energy the greatest in a roller coaster? A) at the bottom of the first hill B) at the top of the first hill C) at the top of the second hill D) at the bottom of the second hill
What do you call the energy of motion? A) force energy B) mechanical energy C) potential energy D) kinetic energy
Which of the following is NOT a common state of matter? A) gas B) solid C) plasma D) liquid
In an atom, which has the least mass? A) proton B) electron C) neutron D) nucleus
PERIODIC means….. A) happening three or four times a year. B) happening very rarely. C) happening frequently. D) happening at regular intervals.
Transition metals are: A) good conductors of thermal energy B) more reactive than alkali metals. C) not good conductors of electric current. D) used to make aluminum
A calcium carbonate molecule has 1 calcium (Ca)atom, 3 oxygen (O) atoms, and 1 carbon (C)atom. Which of the following shows the chemical formula for calcium carbonate? A) Ca 2 CO 2 B) CaC 2 O 2 C) 3CaCO D) CaCO 3
How much electrical energy does a 75 W light bulb use if it is on for 4 hours? A) 300 W B) 150 W C) 150 kWh D) 300 kWh
Which of the following is NOT an insulator? A) copper B) glass C) wood D) air
What does the amount of energy released per charge depend upon? A) resistance B) friction C) current D) voltage
As voltage goes up, what happens to current? A) current goes up B) current stays the same C) current drops to 0 Amps. D) current goes down
Which of the following is NOT a property of waves? A) wavelength B) frequency C) amplitude D) refraction
What does the motion of the source of a sound cause? A) shock waves B) echolocation C) resonance D) Doppler effect
Which surface is the best reflector of sound? A) smooth and hard B) bumpy and soft C) smooth and soft D) bumpy and hard
What wave interaction occurs when waves combine and the resulting wave has a smaller amplitude than the initial waves had? A) destructive interference B) diffuse reflection C) constructive interference D) regular reflection