Which quantity is scalar?(1 point)
Responses
force
force
momentum
momentum
energy
energy
velocity
scalar
The scalar quantity among the given options is energy.
To determine which quantity is scalar, we need to understand the characteristics of scalars and vectors. Scalars are quantities that have only magnitude, meaning they are described by a numerical value and a unit but do not have a direction. Vectors, on the other hand, have both magnitude and direction.
Looking at the given options:
1. Force: Force is a vector quantity since it has both magnitude (measured in Newtons) and direction.
2. Momentum: Momentum is also a vector quantity because it depends on both the mass and velocity of an object, meaning it has both magnitude (measured in kilogram meters per second) and direction.
3. Energy: Energy is a scalar quantity because it only has magnitude (measured in Joules or calories) but no direction associated with it.
4. Velocity: Velocity, like momentum, is a vector quantity because it includes both magnitude (measured in meters per second) and direction.
Based on this analysis, energy is the scalar quantity in the given options since it does not have a direction associated with it.