Science Fall Semester Review 6th

Front

What is net force?

Back

Net force is the overall force acting on an object when all the individual forces are combined. It determines the object's motion.

Front

What causes a ball to roll down a hill?

Back

Gravity causes the ball to roll down the hill.

Front

What force slows down a rolling ball?

Back

Frictional force slows down the rolling ball.

Front

What is frequency in terms of waves?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

How do you determine the net force on an object?

Back

To determine the net force, add all the forces acting on the object, taking into account their direction.

Front

What is potential energy (PE)?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens to potential energy as a pendulum swings?

Back

As a pendulum swings, potential energy is converted to kinetic energy and vice versa.

Front

What is the relationship between potential energy and kinetic energy in a pendulum?

Back

At the highest points of the swing, potential energy is maximum and kinetic energy is minimum. At the lowest point, kinetic energy is maximum and potential energy is minimum.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between surfaces.