2nd 9 weeks Exam Review

Front

What materials can be used to charge one material positively and another negatively using friction?

Back

Vinyl and wool are effective materials for charging through friction.

Front

What happens when two magnets are brought close together?

Back

They can either attract or repel each other depending on their poles.

Front

How can you determine if a car is moving based on a graph?

Back

A car is not moving if the graph shows a zero slope.

Front

What does a constant speed graph look like?

Back

A straight line with a constant slope indicates constant speed.

Front

How does the weight of groceries affect a cart's acceleration when pushed with the same force?

Back

The increased weight decreases the acceleration of the cart.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is Newton's first law of motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.