Download Choose the suitable answer that makes the sentence right.

Choose the suitable answer that makes the sentence right.
1- Energy used in the physical state transformation process is ------------ in the new
physical state of the objects.
a- destroyed
b- vanished
c- contained
d- terminated
2- Energy is what it takes to -------- the physical state of an object.
a- change
b- understand
c- know
d- watch
3- Work is the amount of energy transferred by a -------- acting through a distance.
a- force
b- car
c- way
d- man
4- When a force acts on an object at rest and succeeds to move it through a certain
distance along the line of its action, we say that ------ is done.
a- force
b- energy
c- work
d- power
5- ----------- energy is the energy stored inside the body due to its position from Earth’s
surface.
a- Kinetic
b- Potential
c- Solar
d- Thermal
6- ---------- energy is the energy gained by the body due to its movement.
a- Kinetic
b- Potential
c- Sound
d- Chemical
7- Energy never-------. Energy only changes into different forms.
a- vanishes
b- persists
c- insists
d- contains
8- -------- of an energy conversion is the ratio between the part of the energy that caused
the desired effect and the total energy used.
a- Efficiency
b- Process
c- Amount
d- Forms
9- A battery is an example of energy conversion from chemical energy to --------- energy.
a- solar
b- thermal
c- electric
d- kinetic
10- A turbine changes -------- energy into electric energy.
a- kinetic
b- potential
c- chemical
d- light
11- Efficiency is the ratio of the part of output energy that is beneficial to us and the total
------ energy.
a- rejected
b- used
c- kinetic
d- sound
12- Power is a measure of how fast ------- is converted.
a- force
b- energy
c- heat
d- work
13- Which of the following heaters can heat up a gallon of water to 90oC?
a- 5 W heater
b- 90 W heater
c- 100 W heater
d- All of the above
14- Which of the following heaters can heat up a gallon of water from 10oC to 90oC
faster?
a- 5 W heater
b- 90 W heater
c- 100 W heater
d- All heaters above will take the same amount of time.
15- Which equipment will cost you more to run?
a- A 5 W piece of equipment.
b- A 50 W piece of equipment.
c- A 100 W piece of equipment.
d- Insufficient information.
16- When a current flows through a circuit experiencing a voltage drop, this circuit is ---------- power.
a- producing
b- consuming
c- storing
d- manufacturing
17- A practical voltage source’s output voltage ------- as more current is drawn from it.
a- drops
b- increases
c- charges
d- raises
18- In a mechanical system, energy (or power) transmission involves two physical
quantities:
a- Force and speed.
b- Mass and weight.
c- Light and sound
d- All items above.
19- Lift jack -------- an operator to lift a very heavy weight (at a slow speed).
a- prevents
b- allows
c- disables
d- delays
20- Voltage in an electrical circuit is analogous to --------- in a hydraulic system.
(a) fluid flow rate
(b) speed of the hydraulic motor
(c) volume of the hydraulic fluid
(d) pressure
21- A theoretical voltage source:
a) its voltage will be loaded down if too much current is drawn from it.
b) its voltage will increase if too much current is drawn from it.
c) always maintains a constant voltage.
d) reaches a peak output power at a certain output current.