No 21 Energy in the Built Environment Quiz

What is the law regarding the creation and destruction of energy?

• Energy can be created and destroyed

• Energy can only be created

• Energy can only be destroyed

• Energy cannot be created or destroyed

Which of the following is an example of potential energy?

• A car accelerating

• A moving bicycle

• A raised weight

• A flowing river

What is a force defined as?

• A type of energy

• A push or pull that changes an object's state of motion

• A form of matter

• A chemical reaction

What is the primary characteristic of a force?

• It is invisible

• It can change an object's state of motion

• It is always constant

• It is a type of energy

What type of force is electromagnetism?

• Contact force

• Non-contact force

• Gravitational force

• Frictional force

What is the effect of a force on an object?

• It changes the object's color

• It changes the object's state of motion or causes deformation

• It increases the object's temperature

• It decreases the object's mass

Live loads refer to which of the following?

• The weight of the structure

• The weight of permanent fixtures

• The weight of movable objects

• The weight of the foundation

Which of the following is a characteristic of live loads?

• They are constant

• They are variable

• They are internal

• They are invisible

What hazard does the image show

• Illustration of magnetic force

• Depiction of wind resistance

• Falling debris illustrating gravity at work.

• Example of static electricity

What happens to the acceleration of an object if the resultant force on it increases?

• Acceleration decreases.

• Acceleration increases.

• Acceleration remains constant.

• Acceleration becomes zero.