Force and Motion

Front

What are forces that do not change the motion of an object called?

Back

Balanced forces

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma)

Front

What is the effect of unbalanced forces on an object?

Back

They cause a change in the object's motion.

Front

What is the SI unit of mass?

Back

Kilograms (kg)

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

Acceleration is inversely proportional to mass when force is constant.

Front

What is the term for the rate of change of velocity?

Back

Acceleration

Front

What is the gravitational force acting on an object called?

Back

Weight

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.