Basic Physics

Question 1

Centre of mass

Answer 1

The point at which a single force in the object has no turning effect

Question 2

Density

Answer 2

Mass/volume

Question 3

Moment

Answer 3

The moment if a force about a point is the force x perpendicular distance between the line of acting of the force and the point

Question 4

The principle of moments

Answer 4

For a body to be in equilibrium the resultant moment about any point is zero

Question 5

Centre of gravity

Answer 5

The point on an object through which the entire weight of the object may be considered to act

Question 6

Equilibrium

Answer 6

The state of an object when at rest or in uniform motion. The resultant force on a body in equilibrium is zero and the resultant moment is zero

Question 7

Equilibrium

Answer 7

The state of an object when at rest or in uniform motion. The resultant force on a body in equilibrium is zero and the resultant moment is zero