Plumbing Arithmetic 4

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The actual interest earned by a given principal is known as:

Simple interest

A book is at rest on top of a table. Which of the following is correct?

The book is in equilibrium.

The property of a moving object to continue moving is what Galileo called;

Inertia

According to Newton's First Law of Motion.

An object at rest remains at rest unless acted upon by a net force.

If an object is moving, then the magnitude of its ___ cannot be zero.

Both A and B

A body drop in free fall a vacuum,

Will have the same acceleration during second of it fall.

A bowling ballat a height of 36 meters above the ground is falling vertical a a rate of 12 meters per second. Which of these best describes its fate?

It will hit the round in less than three seconds at a speed greater than 12 m/s.

The speedometer in your car tells you the ___ of your car.

Intantaneous speed

To report the ___ of an object, we must specify both its speed and its direction.

Velocity

The ___ of an object on the Earth’s surface are directly proportional to each other.

Mass and weight

The moon's gravity is 1/6 of the Earth's gravity. The weight of a bowling ball on the Earth would be ___ its weight on the moon.

6 times

A falling object is said to reach terminal speed,

When its air resistance equals the force of gravity on it.

For every action there is an equal and opposite reaction. This is a statement of,

Newton’s Third Law of Motion

___ are examples of vector quantities.

Velocity and acceleration

A green ball moving to the right at 3 m/s strikes a yellow ball moving to the left at 2 m/s. If the balls are equally massive and the collision is elastic,

The green ball will move to the left at 2 m/s while the yellow ball moves right at 3 m/s.

The buoyant force on a block of wood floating in water,

Is equal to the weight of the wood.

An object with a mass of 1 kg displaces 700 ml of water. Which of the following is true?

The weight of this object is 10N.

An object with a mass of 1 kg displaces 0.6 kg of water. Which of the following is true?

The bouyant force on this object is 6N.

The water pressure in a lake behind a dam depends on,

The depth below the surface at which the pressure is measured.

When air is removed from a metal can be vacuum, the can buckles inwards and is crushed. This occurs because

The air pressure on the outside of the can is greater than air pressure on the inside of the can.

Bernoulli's principle explains why,

Airplanes fly

In order to decrease the pressure in an automobile tire, one normally

Decreases the number of air molecules in the tire.

It is the branch of mathematics which deals with the study of formal manipulations of equations involving symbols and numbers.

Algebra

Is an entity describing the quantity or position of a mathematical object or extensions of these concepts

Number

It describes the size or quantity of the collections of objects like 1,2,3...1000 and so on & so forth.

Cardinal number

It refer to the position relative to an ordering such as first, second, third etc:

Ordinal number

It is the sum of real and imaginary numbers which expressed in "x+yi"

Complex number

Is the number that cannot be expressed into ratio of two integers.

Irrational number

Is any positive integer (excluding 1) having no integral factors other than itself and unity.

Prime number

What do you call this laws or properties of equality in algebra, xy = yx?

Commutative Law of Multiplication

What do you call this laws or properties of equality in algebra, x + y = y + x?

Commutative Law of Addition

What do you call this laws or properties of equality in algebra, (x+y) + z=× + (y+z) ?

Associative Law or Addition

What do you call this laws or properties of equality in algebra, (xy)z= x(yz)?

Associative Law of Multiplication

What do you call this laws or properties of equality in algebra, x = x?

Reflexive Property

What do you call this laws or properties of equality in algebra, x = y and y = x?

Symmetric Property

It is a sequence of numbers or quantities in which there is always the same relation between each quantity and the one succeeding it.

Progression

It is a sequence of numbers in which each term (except the first term is obtained from the previous by adding a constant known as the common difference.

Arithmetic Progression

It is a sequence of numbers, each of which each, after the first is obtained by multiplying the preceding term by a fixed number called the common ratio, known as the common difference.

Geometric Progression

It is a sequence of numbers in which the reciprocals form an arithmetic progression.

Harmonic Progression

It is an ordered arrangement of any element in a set.

Permutation

It is an equation when the number of equations is less than the number of unknown.

Deophantine Equation

Who was the first person of whose systematic use of trigonometry which have documentary evidence.

Hipparchus

It is the space between intersecting rays or lines.

Angle

Are angles which are non-right and nonstraight such as acute angles and obtuse angles.

Oblique angles

It is a triangle with two sides equal

Isosceles triangle

It is a triangle with no equal sides.

Scalene triangle

It is a triangle without a 90 degree angle.

Oblique triangle

It is a triangle that all sides are equal.

Equilateral triangle

What do you call this laws or properties of equality in algebra, x + 0 = x?

Additive Identity Property

What do you call this laws or properties of equality in algebra, x + (-x) = 0?

Additive Inverse Property

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