Physics - 2D Vectors (1)

Front

What is a vector?

Back

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

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 resolve a vector into its components?

Back

To resolve a vector, you can use trigonometric functions: the horizontal component (x) is found using cosine, and the vertical component (y) is found using sine.

Front

What is the formula for calculating the weight of an object on an incline?

Back

Weight on an incline = mg sin(θ), where m is mass, g is acceleration due to gravity, and θ is the angle of the incline.

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

How do you calculate the equilibrant force?

Back

The equilibrant force is equal in magnitude and opposite in direction to the resultant force acting on an object.

Front

What is the significance of the angle in vector problems?

Back

The angle determines the direction of the vector components and affects the calculations of forces and motion.

Front

What is friction?

Back

Friction is the force that opposes the relative motion of two surfaces in contact, dependent on the nature of the surfaces and the normal force.

Front

How do you calculate the force of friction?

Back

Force of friction = μN, where μ is the coefficient of friction and N is the normal force.

Front

What is the role of trigonometric functions in vector analysis?

Back

Trigonometric functions (sine, cosine, tangent) are used to resolve vectors into components and to calculate angles in vector problems.