Forces Review

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. It is directly related to the mass of the object.

Front

What happens to the resultant force when two forces act at an angle of 0°?

Back

The resultant force has the largest magnitude when two forces act in the same direction (0° angle).

Front

How does mass affect inertia?

Back

Inertia increases with mass; a heavier object has more inertia and requires more force to change its motion.

Front

What is the condition for an object to be in equilibrium?

Back

An object is in equilibrium when the net force acting on it is zero, resulting in no acceleration.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, calculated as weight = mass × gravitational acceleration (W = mg).

Front

What is the formula for calculating net force?

Back

Net force (F_net) is calculated by summing all the forces acting on an object: F_net = F1 + F2 + ... + Fn.

Front

What is the significance of a negative acceleration?

Back

Negative acceleration indicates that an object is slowing down, meaning its velocity is decreasing.

Front

How do you determine the direction of acceleration?

Back

The direction of acceleration is determined by the change in velocity; it points in the direction of the velocity change.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, acting in the opposite direction to the applied force.