WorksheetsReview Quiz - Physics 10
Total questions: 28
Worksheet time: 16mins
The following are examples of potential energy EXCEPT:
Gravitational potential energy
Elastic potential energy
Electromagnetic energy
Chemical energy
Nuclear Energy can be form from the splitting of a nucleus in a process called __________.
nuclear fusion
nuclear diffusion
nuclear fission
nuclear radiation
The energy transformation happening in photosynthesis is:
heat energy → electromagnetic energy
chemical energy → electromagnetic energy
nuclear energy → chemical energy
electromagnetic energy → chemical energy
When greater force is applied to move an object, the work done is:
decreased
still the same
increased
zero
The work done by the gravitational force on the load being lifted by a pulley is:
zero
negative
positive
cannot be determined
If you use a 40 N force to lift a bag and do 20 Joules of work, how far do you lift it?
800 meters
2 meters
0.5 meters
0 meters
Potential energy is independent of the position of an object. You will gain the same potential energy at any altitude.
TRUE
FALSE
If the work done on the ball causes a decrease in velocity by one-third, kinetic energy will:
increase by 1/3
decrease by 1/9
increase by 3
decrease by 9
An object has a mass of 6 kg. What is its gravitational potential energy 7.5 m above the ground?
45 meters
441 metes
7.84 meters
133.5 meters
A ball of mass 0.5 kg has a 100 Joules of kinetic energy. What is the speed of the ball?
0.05 m/s
14 m/s
71 m/s
20 m/s
From the given image, At what point the kinetic energy is the highest?
A
B
C
D
Rank the following liquids in increasing density: alcohol, water, oil
oil, water, alcohol
alcohol, oil, water
water, oil, alcohol
alcohol, water, oil
The mass of the liquid and a measuring grad. cylinder is 146 g. The mass of the empty measuring cylinder is 100 g. What is the density of the liquid if the volume displaced is 50 cm3?
0.92 g/cm3
92 g/cm3
2.92 g/cm3
29.2 g/cm3
To increase the pressure by 4, the area must be
reduced by 1/4
reduced by 4
increased by 1/4
increased by 4
A concrete block has a mass of 2600 kg. If the block measures 0.5 by 0.5 m, what is the maximum pressure it can exert when resting on the ground?
10.4 kPa
101 kPa
0.65 kPa
6.4 kPa
The following properties of pressure apply to any stationary liquid in open container EXCEPT:
pressure increases with depth
pressure is independent of the shape of the container
pressure is inversely proportional to the density of the liquid
pressure acts on all direction
In a hydraulic system, if the output area is decreased by 6, the output force will:
increase by 6
decrease by 6
decrease by 1/6
no effect
Based from the figure, if the input force is 6 N and input area is 3 m2, the output force in the second piston with 8 m2 area is:
2.25 N
16 N
30 N
32 N
Calculate for the energy efficiency of the engine based from the Sankey Diagram shown.
0.38 %
38%
6%
60%
Water freezes at
273 K
0 oC
32 oF
all of the above
When an object cools down, its particles
lose kinetic energy
gain more kinetic energy
gain potential energy
vibrates faster
When water freezes, it expands because of its
particles vibrating in its position
particles form an open structure
particles sliding past each other
particles move very fast
It is the transfer of thermal energy by direct contact.
conduction
convection
radiation
expansion
Convection in liquid creates a flow wherein:
warm water rises and cold water sinks
warm water sinks and cold water rises
warm water is always on the bottom
warm water is always on the top
Thermal radiation can come in any wavelength but it is mainly:
infrared waves
gamma waves
microwaves
light waves
Kirchhoff's radiation law states that object that are good emitters are also:
good conductors
good reflectors
good absorbers
good insulators
Student A was able to do the work of 60 Joules in 1 min. Student B has done the same amount of work but in half the time of Student A. Which of the following statements is true?
Power output of Student A is greater than Student B.
Power output of Student B is greater than Student A.
Same power output for both Students A and B.
A crate of weight 3 000 N is raised by an electric motor through a height of 50 meters in 60 seconds. Calculate the power output of the motor.
1 Joule
2 500 Joules
50 Watts
2 500 Watts
