Fil 7 3rd Quarter Science High School - Physics

What is the SI unit of force?

• Newton (N)

• Meter

• Kilogram

• Joule

Define Newton's First Law of Motion.

• Newton's First Law of Motion states that objects in motion will slow down and eventually stop without any external force.

• Newton's First Law of Motion states that objects in motion will speed up indefinitely.

• Newton's First Law of Motion states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an external force.

• Newton's First Law of Motion states that objects at rest will spontaneously start moving.

Explain the concept of work in physics.

• Work is the same as power in physics.

• Work in physics is the product of force and distance, expressed as work = force x distance.

• Work is only done when an object is in motion.

• Work is measured in kilograms.

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

Describe the difference between mass and weight.

• Mass is the amount of matter in an object, while weight is the force exerted on an object due to gravity.

• Mass is measured in pounds, while weight is measured in kilograms.

• Mass is the force exerted on an object, while weight is the amount of matter in an object.

• Mass and weight are the same thing.

What is the law of conservation of energy?

• Energy can be transformed into matter

• Energy can be destroyed completely

• Energy can be created out of nothing

• Energy cannot be created or destroyed, only transferred or transformed.

How does a concave lens differ from a convex lens?

• A concave lens is used to correct farsightedness, while a convex lens is used to correct nearsightedness.

• A concave lens has a thicker center and thinner edges, while a convex lens has a thinner center and thicker edges.

• A concave lens causes light rays to converge, while a convex lens causes light rays to diverge.

• A concave lens causes light rays to diverge, while a convex lens causes light rays to converge.

Define the term 'refraction' in the context of physics.

• Refraction is the absorption of light by a material

• Refraction is the change in direction of a wave passing from one medium to another caused by its change in speed.

• Refraction is the reflection of light off a surface

• Refraction is the bending of light due to gravity

Explain the principle of moments.

• The principle of moments is based on the concept of torque, where the force applied at a distance from a pivot point creates a rotational effect.

• The principle of moments is related to the concept of speed and velocity.

• The principle of moments states that the force applied directly determines the linear motion of an object.

• Moments are only applicable in linear motion, not rotational motion.

What is the relationship between frequency and wavelength in a wave?

• Inverse relationship

• No relationship

• Direct relationship

• Exponential relationship