Potential Energy
Which of the following is an example of gravitational potential energy?
a) A car speeding down a hill b) A stretched rubber band c) A book resting on a shelf d) A running fan
c) a book resting on a shelf
What is kinetic energy?
a) Energy stored in an object due to its height
b) Energy an object has due to its motion
c) Energy produced by heat
d) Energy stored in chemical bonds
b) Energy an object has due to its motion
What is the primary cause of thermal energy?
(b) Motion of molecules
What is chemical energy?
a) Energy stored in the form of heat.
b) Energy stored in the form of light.
c) Energy stored in the bonds of atoms and molecules.
d) Energy stored in the movement of objects.
c) Energy stored in the bonds of atoms and molecules.
The Law of Conservation of Energy states that:
a) Energy can be created or destroyed.
b) The overall amount of energy can change.
c) The overall amount of energy remains the same, and energy cannot be created or destroyed.
d) The overall amount of energy is always the same.
c) The overall amount of energy remains the same, and energy cannot be created or destroyed.
What is the energy an object has due to its position called?
a) Kinetic energy b) Heat energy c) Potential energy d) Sound energy
c) potential energy
What two factors determine the kinetic energy of an object?
a) Mass and temperature
b) Mass and velocity
c) Height and velocity
d) Mass and height
b) Mass and velocity
Which of the following is NOT a form of thermal energy transfer?
(b) Convection
Which of the following is NOT an example of chemical energy?
a) A battery
b) A burning match
c) A rock about to fall off a cliff
d) A glow stick
c) A rock about to fall off a cliff
What are the different forms of energy?
kinetic, potential, thermal, electrical, chemical, nuclear
The amount of gravitational potential energy an object has depends on its:
a) Mass and temperature b) Mass and height c) Speed and height d) Temperature and speed
b) mass and height
True or False:
Kinetic energy is measured in Joules (J).
True
What is the name for the process where heat is transferred through direct contact?
(c) Conduction
Which of the following is a source of chemical energy?
a) The sun
b) A fan
c) A light bulb
d) A battery
d) A battery
How does energy move from one place to another?
conduction, convection, radiation
The standard unit of measurement for potential energy is:
a) Watt b) Joule c) Ampere d) Newton
b) Joule
What would happen to the kinetic energy of a car if it slows down?
Kinetic Energy will decrease
Which of the following materials is a poor conductor of heat?
(c) Plastic
8. What happens during an exothermic reaction?
a) Heat is absorbed.
b) Heat is released.
c) The reaction slows down.
d) The reaction stops.
b) Heat is released.
What is energy
The ability to do work
Which of the following is NOT an example of potential energy?
a) A stretched spring b) A coiled spring c) A running car d) A ball held above the ground
Answer: c) A running car
True or False: The faster an object moves, the less kinetic energy it has.
False
Which process is used in refrigeration to remove heat?
(c) Evaporation and Condensation
In an exothermic reaction, energy is:
a) Absorbed
b) Released
c) Stored
d) Created
b) Released
How does energy help us in our everyday lives?
Energy powers everything we do, from walking and talking to using appliances and transportation. It's essential for heating our homes, cooking food, lighting our buildings, and powering our devices.