Physics Unit 2 Review

Front

What is frictional force?

Back

Frictional force is the force that opposes the motion of an object when it is in contact with another surface.

Front

What is the formula for calculating acceleration?

Back

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

Front

How do you calculate the weight of an object?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g), where g is approximately 9.8 m/s² on Earth.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, while mass is the amount of matter in the object. Weight = Mass × Gravity.

Front

What is net force?

Back

Net force is the total force acting on an object after all the forces are combined. It determines the object's acceleration.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

If a 2kg bird is pushed by the wind with a force of 2N, what is its acceleration?

Back

1 m/s².

Front

What is the force of an object with a mass of 30 kg and an acceleration of 10 m/s²?

Back

300 N.

Front

What does it mean if an object has a net force of 0?

Back

If the net force is 0, the object is either at rest or moving at a constant velocity.

Front

What is normal force?

Back

Normal force is the support force exerted upon an object that is in contact with a surface, acting perpendicular to the surface.