2nd 9 weeks review

Front

What is radiation?

Back

Energy that comes as wavelengths (like light) from something.

Front

What is the net force?

Back

The sum of all forces acting on an object.

Front

What is a contact force?

Back

A force that acts at the point of contact between two objects.

Front

What is a balanced force?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Forces that are not equal and can cause an object to accelerate.

Front

What is a conductor?

Back

A material that allows heat or electricity to pass through it easily.

Front

Why are frying pans made of metal?

Back

Because metals are good conductors of heat energy.

Front

Calculate the net force if 60N is applied to the right and 20N to the left.

Back

40N, Right.

Front

What happens when the net force on an object is zero?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the formula for calculating net force?

Back

Net Force = Total Forces acting in one direction - Total Forces acting in the opposite direction.