Date: ______________ Mr. Barry Class Period _____
_____ 2. When acceleration is negative, what happens?
_____ 3. At the beginning of a race, Sam starts from rest and achieves a velocity of 5.0 m/s in just
4.0 seconds. What is his acceleration?
A) 0.80 m/s2
_____ 4. Vanessa drives 30 km on the highway at an average speed of 90 km/hr. How long does it
_____ 5. If you want to calculate the acceleration of a car, you should ___ the change in velocity of
the car by the time interval.
A) multiply B) increase C) decrease D) divide
_____ 7. What is the shape of the path that a projectile follows?
_____ 8. If you threw a baseball forward at a speed of 10 m/s and dropped another baseball from
the same height at the same time, which would hit the ground first?
_____ 9. What does velocity tell you that speed does not tell you?
at both locations?
A) mass only B) weight only C) both mass and weight
D) both are different at two locations
is 3000 kg, what force does its engine exert?
A) 1000 N B) 0.001 N C) 9000 N
_____ 12. A 1.0 kg ball and a 5.0 kg ball are dropped at the same instant. Which one hits the ground first?
_____ 13. If you drop a sheet of paper and a pencil at the same time, the pencil will hit the ground first
even though they experience the same acceleration. Why is this true?
_____ 14. As an object falls, its downward velocity:
_____ 15. If the same force is applied to the following objects, which will accelerate the most?
_____ 16. A 1.0 kg ball and a 5.0 kg ball are dropped at the same instant. Which one has more inertia?
_____ 17. What do we call the unbalanced force that causes acceleration toward the center of a circle?
_____ 18. Why does it hurt more to be hit by a bullet that is shot from a gun than to be hit by a bullet that
is thrown at you?
_____ 19. What causes acceleration?
A) a balanced force B) an unbalanced force C) inertia
D) mass E) velocity
A) 0.003 N B) 333 N C) 3000 N
A) 5.0 kg B) 0.005 kg C) 20 kg
A) 100 N B) 10 N C) 980 N
seconds. What is its acceleration?
try to play tug-of-war, they A) Newton’s 1st law of motion
pull themselves as hard as
they pull each other. B) Newton’s 2nd law of motion
that is not tied, it flies across
the room because as it pushes the
air out, the air pushes it forward.
car than a bicycle moving at the
_____ 27. A baseball that is thrown in space will
keep moving at a constant speed in a
straight line until it hits something.
_____ 28. A force that acts against motion causing things to slow down is
A) inertia B) friction C) gravity
D) weight E) mass
1.03—Analyze the conservation of energy and work.
Chapters 4 & 5
A) 16.25 J B) 260 J C) 130 J D) 520 J
_____ 31. When Matt dives off the diving board and heads toward the water, what happens to his
_____ 32. Who does the most work in the following situations?
_____ 33. One joule is the same as one:
A) milliliter B) dm3 C) newton meter
_____ 34. The law of conservation of energy states that
Consider the following picture of a ball swinging on a string:
_____ 35. At which position does the ball have the greatest potential energy?
_____ 36. At which position does the ball have the greatest kinetic energy?
_____ 37. Which of the following has the greatest potential energy?
_____ 38. Jessica pushes on a car stuck in a ditch with a force of 1000 N for 15 minutes. The car remains
stuck. How much work did Lucas do?
A) 66.7 J B) 1.11 J C) 15 000 J D) 0 J
_____ 39. A 250 g rock flies through the air at a speed of 10.0 m/s. What is its kinetic energy?
A) 2.5 J B) 25 J C) 2500 J D) 25 000 J
GOAL 2: Build an understanding of thermal energy.
Vocabulary: heat, thermal energy, thermal pollution, specific heat,
vaporization, evaporation, sublimation, temperature,
heat of fusion, heat of vaporization, entropy, conduction,
convection, radiation, friction, efficiency
--know effects of gaining or losing heat, such as contraction and expansion
or rising and falling temperature or change of phase
--be able to read a phase change graph (like the lab where we melted ice
and then heated the water)
--be able to describe or recognize the motion of molecules as heat is
gained or lost and to describe the motion of molecules of a solid, a
liquid and a gas
A) temperature B) heat C) thermal energy D) conduction
A) insulation B) conduction C) convection D) radiation
43.If 3800 joules of thermal energy are added to 100 g of copper, by how much will the temperature of the
copper change? The specific heat of copper is 0.380 kJ/kg.K.
44.A 1.00 kg block of iron is heated from 22oC to 77oC. The specific heat of iron is 0.450 kJ/kg.K. What is
the change in internal energy of the block?
4. 250 kg of glass are heated from 35oC to 45oC using 2100 kJ of thermal energy.
What is the specific heat of glass?
_____ 46. Which of the following would take the most heat to raise its temperature from 300 K to 325 K?
_____ 47. Which of the following can result from thermal pollution?
_____ 48. Which of the following has the most thermal energy?
_____ 49. How much heat does it take to melt 100 grams of lead at its melting point?
A) 328 J B) 1740 J C) 2500 J D) 32 800 J
_____ 50. How much heat does it take to vaporize 50 g of ethyl alcohol at its boiling point?
A) 79 J B) 3950 J C) 42 750 J D) 85 500 J
A) 70 K B) 140 K C) 210 K D) 343 K
A) 0oC B) 0oF C) 273 K D) 0 K
A) specific heat B) volume C) energy D) money
A) tap water B) ice C) ice water D) steam
_____ 56. Which of the following describes the particles of a solid?
_____ 57. Particles of which state of matter have the most kinetic energy?
A) solids B) liquids C) gases
2.02—Analyze the conservation of the total amount of energy, including heat
energy, in a closed system; the First Law of Thermodynamics
A) heat engine B) radiator C) combustion
_____ 60. What unbalanced forces can cause some of the kinetic energy of a person swinging on a
playground swing to change into thermal energy?
_____ 62. A ratio of the work output of a machine to the work input of a machine is called: