TE-21 Review (Fall)

What is the formula to calculate force?

• force = mass / acceleration

• force = mass * acceleration

• force = mass - acceleration

• force = mass + acceleration

According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by what?

• external force

• inertia

• friction

• gravity

What is the SI unit of force?

• Kilogram (kg)

• Meter (m)

• Second (s)

• Newton (N)

What is the formula to calculate acceleration?

• Acceleration = (final velocity + initial velocity) / time.

• Acceleration = (final velocity - initial velocity) / time

• Acceleration = (final velocity * initial velocity) / time.

• Acceleration = (final velocity - initial velocity) * time.

According to Newton's second law of motion, what is the relationship between force, mass, and acceleration?

• Force is directly proportional to acceleration but not mass.

• Force is inversely proportional to mass and acceleration.

• Force is directly proportional to mass and acceleration.

• Force is directly proportional to mass but not acceleration.

What is the formula to calculate weight?

• weight = mass - gravity

• weight = mass x gravity

• weight = mass + gravity

• weight = mass / gravity

What is the principle of superposition in relation to waves?

• The principle of superposition states that when two or more waves meet at a point in space, the resulting displacement at that point is the average of the individual displacements of the waves.

• The principle of superposition states that when two or more waves meet at a point in space, the resulting displacement at that point is the maximum of the individual displacements of the waves.

• The principle of superposition states that when two or more waves meet at a point in space, the resulting displacement at that point is the algebraic sum of the individual displacements of the waves.

• The principle of superposition states that when two or more waves meet at a point in space, the resulting displacement at that point is the minimum of the individual displacements of the waves.

What is the unit of frequency?

• gigahertz

• megahertz

• kilohertz

• hertz

What is the formula to calculate force according to Newton's second law of motion?

• Force = mass * acceleration

• Force = mass / acceleration

• Force = mass + acceleration

• Force = mass - acceleration

What is the unit of power?

• watt

• joule

• newton

• ampere