BME 316 Quiz 3

1. In which lever situation would the moment arm be the greatest (the arrow represents the force)?

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If a person pushed on a door with a force of 50 N, and the moment arm was 1 meter, what would be the torque?

• 25 Nm

• 50 Nm

• 12.5 Nm

• Unknown

If the biceps brachii were contracting isometrically, what would happen to the angular velocity about the elbow?

• 1. Increasing

• 1. Descreasing

• 1. Remain constant

• 1. Unknown

Right foot and right thigh are

• Ipsilateral

• Contralateral

• Part of the axial skeleton

• None of the above

The neurological enhancement are mainly responsible for strength gain during

• after 6 months of training

• First 4 weeks of training

• 8 to 12 weeks of training

• none of the above

Which of the following statements best describes stress?

• Magnitude of force

• Direction of force application

• Force per unit area

• Push or a pull that tends to cause motion

Muscles creating same movement are called

• Prime mover

• Assistant mover

• Agonist

• Antagonist

What would be the vertical force component of a 400 N force acting at 60 degrees from the horizontal?

• 8.3 N

• 257.1 N

• 433 N

• 346.4 N

Which of the following statements about air resistance is true?

• Air resistance is in the exact opposite direction to the motion.

• Air resistance always have upward lift force

• Air resistance always have downward lift force

• Air resistance is composed of lift force and drag force.

Which parameter is the cause of angular motion?

• Displacement

• Torque

• Velocity

• Acceleration