science

What is force?

A push or pull exerted by an object on another object.

What are the effects of force?

Changes an object's speed and direction, alters its shape, helps in shaping materials, and can stretch objects.

What is the SI unit of force?

Newtons (N).

What is a free-body diagram?

A tool used to visualize forces acting on an object, representing the magnitude and direction of all forces.

What is net force?

The total force acting on an object when all individual forces are combined.

What happens if the net force is zero?

The object remains at rest or moves at a constant velocity.

What are balanced forces?

Equal forces acting in opposite directions resulting in a net force of zero.

What are unbalanced forces?

Forces that cause a change in motion due to one force being greater than the other.

What is friction?

The force that opposes motion.

What is a frame of reference?

The perspective or location from which motion is observed.

How is distance defined in motion?

The total length of the path traveled by an object, regardless of direction.

How is displacement defined?

The change in position of an object from its starting point to its ending point, considering direction.

What is speed?

The rate of motion of an object calculated as speed = distance traveled / elapsed time.

What is temperature?

The measure of the average kinetic energy of the particles in an object, indicating how hot or cold it is.

How is temperature measured in Celsius?

Divides the interval between freezing (0°C) and boiling (100°C) into 100 equal parts.

What is the conversion formula from Celsius to Kelvin?

K = °C + 273.15.

What happens to particle motion at higher temperatures?

Particles move faster and have greater kinetic energy.

What is the relationship between temperature and particle motion?

Higher temperature means faster movement of particles, while lower temperature means slower movement.