Unit 2 Review

Front

What does it mean for an object to be standing still in a graph?

Back

An object is standing still when its position does not change over time, represented by a horizontal line on a graph.

Front

What is net force?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can involve changes in speed, direction, or both.

Front

What is Newton’s Law of Inertia?

Back

Newton’s Law of Inertia states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by a net external force.

Front

What happens to a ball rolling across the floor with friction?

Back

The ball will eventually slow down and stop due to the opposing force of friction acting on it.

Front

What are energy transformations?

Back

Energy transformations are changes from one form of energy to another, such as chemical energy transforming into thermal energy.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, which is the total kinetic energy of particles in an object.

Front

What is sound energy?

Back

Sound energy is a form of energy that is associated with the vibration of matter, which can be heard when it travels through a medium.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, which can be released during a chemical reaction.

Front

How does friction affect motion?

Back

Friction is a force that opposes motion, causing objects to slow down or stop when they are in contact with each other.