Science forces loads

Question 1

What is a force?

Answer 1

A force is a push or pull that can cause an object to accelerate, decelerate, or change direction.

Question 2

True or False: Forces can only act on objects that are in motion.

Answer 2

False

Question 3

Fill in the blank: The unit of force in the International System of Units (SI) is the _____.

Answer 3

Newton

Question 4

What is the formula for calculating force?

Answer 4

Force = Mass × Acceleration (F = ma)

Question 5

Multiple Choice: Which of the following is NOT a type of force? A) Gravitational B) Electromagnetic C) Thermal D) Frictional

Answer 5

C) Thermal

Question 6

What is the force of gravity on an object called?

Answer 6

Weight

Question 7

True or False: Frictional force always opposes the motion of an object.

Answer 7

True

Question 8

What is the term for the maximum force of static friction before an object starts to move?

Answer 8

Static friction limit

Question 9

Fill in the blank: The force that acts between two surfaces in contact is called _____.

Answer 9

Friction

Question 10

What is the relationship between mass and weight?

Answer 10

Weight is the force exerted by gravity on an object’s mass.

Question 11

Multiple Choice: Which law states that for every action, there is an equal and opposite reaction? A) Newton’s First Law B) Newton’s Second Law C) Newton’s Third Law

Answer 11

C) Newton’s Third Law

Question 12

What type of load does a tensile force create?

Answer 12

A tensile load creates stretching or pulling.

Question 13

True or False: A compressive force always increases the length of an object.

Answer 13

False

Question 14

Fill in the blank: The point where the total load is applied on a structure is called the _____.

Answer 14

Load point

Question 15

What is shear force?

Answer 15

Shear force is a force that causes two adjacent parts of an object to slide past each other.

Question 16

Multiple Choice: Which type of load is responsible for bending in beams? A) Shear Load B) Tensile Load C) Compressive Load D) All of the above

Answer 16

D) All of the above

Question 17

What is the primary factor that affects the strength of materials under load?

Answer 17

Material properties such as elasticity, yield strength, and ultimate strength.

Question 18

True or False: Dead loads are permanent or stationary loads on a structure.

Answer 18

True

Question 19

Fill in the blank: Live loads are loads that can change over time, such as _____.

Answer 19

Occupants or furniture

Question 20

What is the term for the distribution of forces within a structure?

Answer 20

Load distribution