Physics jeopardy Physics review semester exam

Q1• Name the major areas of physics

Q2• Identify the area of physics that is most relevant

to the following • A) a high school football game• B) lighting in a thunderstorm

Q3• What are the activities involve in the scientific

method ?

Q4• Give to two examples of ways that physicists

model the physical world

Q5• Which SI units would you use for the following

measurements?• A) the length of a swimming pool• B) the time it takes a swimmer to swim a lap

Q6• Express the following measurements as indicated• A) 6.20 mg to kilogram• B)88 km to meters

Q7. • Perform these calculations, following the rules for

significant figures• A) 26x0.02584• B)15.3 /1.1• C)782.45-3.5328

Q8• What area of physics deal with the subjects of

heat and temperature?A) mechanics

• B)thermodynamics• C)electrodynamics• D)quantum mechanics

Q9• What area of physics deal with the behavior of

subatomic particles?• A) mechanics• B)thermodynamics• C)electrodynamics• D)quantum mechanics

Q10• What term describes a set of particles or

interacting components considered to be a distinct physical entity for the purpose of study?

• A. System• B. model• C. hypothesis• D. controlled experiment

Q11• What is the SI base unit for length?• A. inch• B. foot• C. meter• D.kilometer

Q12• A light-year is a unit of distance defined as the

distance lights travels in one year. Numerically, 1ly= 9500000000000 km. How many meters in a light year?

• A. • B. • C. • D.

Q13• What is the definition of displacement?

Q14• What is the definition of average velocity?

Q15• What is the definition acceleration?

Q16• What is the SI unit for average velocity and

acceleration?

Q17• A bus travels from El Paso, Texas to Chihuahua,

Mexico, in 5.2 h with an average velocity of 73 km/h to the south. What is the bus’s displacement?

• A. 73 km to the south• B. 370 km to the south• C. 380 km to the south• D.14 km/h to the south

Q18• A ball initially at rest rolls down a hill and has an

acceleration of 3.3 . If it accelerates for 7.5 s, how far will it move during this time?

• A. 12m• B. 93m• C. 120m• D. 190m•

Q19• A car moving eastward along a straight road

increase its speed uniformly from 16m/s to 32 m/s in 10 s.

• A. what is the car’s average acceleration?• B. what is the car’s average velocity ?• C. How far did it move while accelerating?

Q20• Which of the following quantities are scalars,and

which are vectors?• A. the acceleration of a plane• B. the number of passengers on the plane• C. the duration of the fight• D. the displacement of the flight• E. the amount of fuel required

Q21• A rollercoaster moves 85 m horizontally, then

travels 45m at an angle of 30 degree above the horizontal. What is its displacement from tis starting point?

Q22• List an example of each of the following• A. a force causing an object to start moving• B. A force causing an object to stop moving• C. A force causing an object to its direction

Q23• Give two examples of field force and two

examples of contact force

Q24• What is the Si unit of force?

Q25• A 6 kg object undergoes an acceleration of 2 .• A) what is the magnitude of the net force acting

on the object?

Q26• A worker pushes a crate with a horizontal force of

345N a distance of 24m. Assume the coefficient of kinetic friction between the crate and the floor is 0.220.

• A) How much work is done by the worker on the crate?

• B)How much work is done by the floor on the crate?

• C) what is the net work?

Q27• A 0.075 kg ball in a kinetic sculpture moves at a

constant speed along a motorized vertical conveyor belt. The ball rises 1.32 m above the ground.

• A constant frictional force of 0.350 N acts in the direction opposite the conveyor’s belt. What is the net work done on the ball?

Q28• A pinball bangs against a bumper , given the ball

a speed of 42 cm/s. If the ball has a mass of 50 g .What is the ball’s kinetic energy in joules?

Q29• A 50 kg student climbs up a 5 m rope at a

constant speed . The student has a power output of 20 w. How long does it take the student to climb the rope? How much work does the student does?

Q30• A motor-driven winch pulls the 50 kg student from

the previous problem up the 5 m rope at a constant speed of 1.25 m/s. How much power does the motor use in raising the student?

Q31• What is work ?

Q32• What is kinetic energy?

Q33• A 0.42 kg soccer ball is moving downfield with a

velocity of 12 m/s . A player kicks the ball so that it has a final velocity of 18 m/s downfield.

• A. What is the change in the ball’s momentum?

Q34• High speed photographs show the head of a 215 g

golf club traveling at 55 m/s just before it strikes a 46 g golf ball at rest on a tee. After the collision, the club travels at 42 m/s. Find the speed of the golf ball just after impact.

Q35 • Give two examples of elastic collisions

Q36 • Give two examples of perfectly inelastic collisions

Q37• A 95 kg. fullback moving south with a speed of 5

m /s has a perfectly inelastic collision with a 90 kg opponent running north at 3 m/s.

• A. Calculate the velocity of the players just after tackle.

Q38• Two 0.40 kg soccer balls collide elastically in a

head-on collision. The first ball starts at rest, and the second ball has a speed of 3.5 m/s. After the collision the second ball is at rest.

• A. What is the final speed of the first ball• B. What is the kinetic energy of the first ball

before the collision?