Force and Energy Review

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to accelerate in the direction of the greater force.

Front

What is gravity?

Back

Gravity is the force that pulls all objects towards the center of the Earth.

Front

What does it mean for an object to move at a constant speed?

Back

An object moving at a constant speed is traveling the same distance in equal intervals of time without speeding up or slowing down.

Front

What happens when two teams pull with the same amount of force?

Back

If two teams pull with the same amount of force, they will not move at all.

Front

What is net force?

Back

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

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.

Front

What is an example of a balanced force in everyday life?

Back

A book resting on a table is an example of balanced forces; the force of gravity pulling it down is balanced by the normal force of the table pushing it up.

Front

What is an example of an unbalanced force?

Back

A soccer ball being kicked is an example of an unbalanced force; the force of the kick is greater than the forces acting against it.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.