Construction Beams

What is the purpose of shear force in simply supported beams?

• To increase the weight of the beam

• To distribute reactions at the supports

• To resist bending due to applied loads

• To connect the beam to the columns

Tags

NGSS.HS-PS2-1

What are 'reaction forces' in simply supported beams?

• Forces that hold the beam together

• Forces exerted by the beam on the supports

• Forces applied by external weights

• Forces that paint the beam

How is a simply supported beam held up?

• A) By a single support in the middle

• B) By supports only at the ends

• C) By floating in air

• D) By being attached to a wall

Tags

NGSS.HS-PS2-1

What is the term used for the force at each support of a beam?

• A) Pressure force

• B) Balanced force

• C) Reaction force

• D) Gravitational force

What is a common application of simply supported beams in construction?

• Building roofs

• Bridge girders

• Elevator shafts

• Swimming pools

What happens to the downward force on the beam shown in the diagram?

• It causes the beam to move downwards

• It is balanced by the left and right reactions

• It is only balanced by the left reaction

• It is unbalanced and causes rotation

Tags

NGSS.HS-PS2-1

What is the term used to describe the application of load in just one place on the beam?

• Distributed loading

• Point loading

• Uniform loading

• Central loading

If the force F is applied at the center of the beam, and L1 equals L2, what is the reaction force R1 equal to?

• R1 = F / 2

• R1 = F * L1

• R1 = (F * L2) / L

• R1 = L1 + L2

Tags

NGSS.HS-PS2-1

What is the sum of the reaction forces R1 and R2 equal to?

• F / L

• L1 + L2

• F

• L

What is the reaction force R1 for the beam shown in the diagram if the total downward force is 200N and it is located 0.5m from R1 and 1.5m from R2?

• 150N

• 200N

• 300N

• 500N

Tags

NGSS.HS-PS2-1