7th Grade Q2 QSE Review: 7.7D 7.8A 7.8C

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. Objects at rest stay at rest, and objects in motion stay in motion unless acted upon by an unbalanced force.

Front

What kinds of objects have inertia?

Back

All objects with mass have inertia.

Front

What happens to an object in motion when no unbalanced force acts on it?

Back

An object in motion tends to stay in motion.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, either by speeding up, slowing down, or changing direction.

Front

How does mass affect inertia?

Back

Objects with more mass have more inertia, meaning they require more force to change their motion.

Front

What is the relationship between heat and temperature?

Back

Heat is the energy transferred between objects due to a temperature difference, while temperature is a measure of the average kinetic energy of the particles in a substance.

Front

In which direction does heat flow?

Back

Heat flows from a hotter object to a cooler object.

Front

What is the effect of a seatbelt during a car crash?

Back

A seatbelt helps to restrain the driver and passengers, preventing them from continuing to move forward due to inertia.

Front

What is a balanced force?

Back

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

Front

What is an example of inertia in everyday life?

Back

A book resting on a table will remain at rest until someone pushes it.