Get ready for the NCEA Level 1 Energy Test. Utilize flashcards and multiple choice questions with clear explanations and hints. Prepare for success!

Multiple Choice

Which quantity is measured in newtons?

The Newton is the unit used to measure force—the push or pull that can change an object's motion. By definition, force relates to mass and acceleration through F = ma, so a force of 1 newton would accelerate a 1 kilogram mass at 1 meter per second squared. For example, pushing a 2 kg object so it speeds up at 1 m/s² requires 2 newtons of force. Energy is measured in joules, not newtons (a joule is a force acting over a distance). Distance is measured in metres, not newtons. Power is measured in watts, which are joules per second. These different units reflect the distinct quantities: force (newtons), distance (metres), energy (joules), and power (watts).

The Newton is the unit used to measure force—the push or pull that can change an object's motion. By definition, force relates to mass and acceleration through F = ma, so a force of 1 newton would accelerate a 1 kilogram mass at 1 meter per second squared. For example, pushing a 2 kg object so it speeds up at 1 m/s² requires 2 newtons of force.

Energy is measured in joules, not newtons (a joule is a force acting over a distance). Distance is measured in metres, not newtons. Power is measured in watts, which are joules per second. These different units reflect the distinct quantities: force (newtons), distance (metres), energy (joules), and power (watts).