Chapter 2 Speed, Time--Graph, Velocity, and Force

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Front

What is the formula for calculating average speed?

Back

Average speed = Total distance / Total time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is a force?

Back

A force is a push or pull acting upon an object, measured in Newtons (N).

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object; the object remains at rest or continues to move at a constant speed.

Front

What happens when unbalanced forces act on an object?

Back

Unbalanced forces cause an object to accelerate, changing its speed or direction.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m x a).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, measured in meters per second squared (m/s²).

Front

What is the relationship between mass and force?

Back

The greater the mass of an object, the more force is required to accelerate it.