Forces Review

Front

What is the formula to calculate acceleration?

Back

Acceleration (a) = Net Force (F) / Mass (m)

Front

If a cart has a mass of 0.5 kg and experiences a net force of 5 N, what is its acceleration?

Back

10 m/s²

Front

What is air resistance and how does it affect falling objects?

Back

Air resistance is the upward force acting against the weight of a falling object, slowing its descent.

Front

Define net force.

Back

Net force is the total force acting on an object after all the forces are combined.

Front

What is the unit of force in the International System of Units (SI)?

Back

Newton (N)

Front

What is friction and how does it affect motion?

Back

Friction is the force that opposes the relative motion of two surfaces in contact.

Front

If a box has a mass of 20 kg and accelerates at 2 m/s², what is the net force acting on it?

Back

40 N (calculated using F = m * a) in the direction of the acceleration.

Front

What is the difference between static and kinetic friction?

Back

Static friction prevents motion between stationary objects, while kinetic friction acts on moving objects.

Front

How does mass affect the acceleration of an object when a constant force is applied?

Back

Greater mass results in lower acceleration for the same applied force (F = m * a).

Front

What is the direction of the net force if an object accelerates to the right?

Back

The net force is also directed to the right.