Lab 11 Flashcard

Front

What is the horizontal component of velocity?

Back

The horizontal component of velocity is the part of the velocity vector that is parallel to the horizontal axis. It can be calculated using trigonometric functions if the angle and magnitude of the velocity are known.

Front

When do two forces have the largest resultant force?

Back

Two forces have the largest resultant force when they act in the same direction, which is at an angle of 0° to each other.

Front

What is equilibrium in the context of forces?

Back

Equilibrium occurs when the net force acting on an object is zero, meaning all forces are balanced and the object remains at rest or moves at a constant velocity.

Front

Which combination of forces cannot produce equilibrium?

Back

The combination of 1 N, 3 N, and 5 N cannot produce equilibrium because their magnitudes do not allow for a balanced net force.

Front

How do you represent the resultant of two vectors graphically?

Back

The resultant of two vectors can be represented graphically by placing the tail of the second vector at the head of the first vector and drawing a vector from the tail of the first to the head of the second.

Front

What is a vector?

Back

A vector is a quantity that has both magnitude and direction, such as force, velocity, and displacement.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude (e.g., mass, temperature), while vector quantities have both magnitude and direction (e.g., velocity, force).

Front

How do you calculate the resultant of two perpendicular vectors?

Back

To calculate the resultant of two perpendicular vectors, use the Pythagorean theorem: R = √(A² + B²), where A and B are the magnitudes of the two vectors.

Front

What is the significance of the angle between two forces?

Back

The angle between two forces affects the magnitude of their resultant; the closer the angle is to 0°, the larger the resultant force.

Front

What is the formula for calculating the horizontal component of a vector?

Back

The horizontal component (Vx) can be calculated using Vx = V * cos(θ), where V is the magnitude of the vector and θ is the angle with the horizontal.