OCT414 Topic 4 - Biomechanic Principles II

OCT414 Topic 4 - Biomechanic Principles II

University

55 Qs

quiz-placeholder

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OCT414 Topic 4 - Biomechanic Principles II

OCT414 Topic 4 - Biomechanic Principles II

Assessment

Quiz

Physics

University

Easy

Created by

Imanina Yazit

Used 7+ times

FREE Resource

55 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is torque?

The tendency of a force to rotate an object

The resistance to motion between two surfaces

The rate of change of velocity

The force that opposes the motion of an object

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the force arm in a lever system?

The perpendicular distance between the location of force application and the axis of rotation

The distance between the axis and the point of resistance application

The shortest distance from the axis of rotation to the line of action of the force

The greater the distance of the force arm, the more torque produced by the force

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mechanical advantage of a wheel and axle?

Radius of wheel / Radius of axle

Radius of axle / Radius of wheel

Force arm / Moment arm

Moment arm / Force arm

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a pulley?

To change the direction of force

To increase the amount of force applied

To decrease the amount of mechanical energy needed

All of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the law of inertia?

A body in motion tends to remain in motion at the same speed in a straight line unless acted on by a force

A change in acceleration is directly proportional to the force causing it and inversely proportional to the mass of the body

For every action, there is an opposite and equal reaction

The resistance to motion between two surfaces

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between static friction and kinetic friction?

Static friction occurs between two objects that have not yet begun to move, while kinetic friction occurs between two objects that are sliding upon one another

Static friction is always greater than kinetic friction

Static friction depends on the hardness and roughness of the surface textures

All of the above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is rolling friction?

Resistance to an object rolling across a surface

Resistance to motion between two surfaces

The rate of change of velocity

The force that opposes the motion of an object

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