Physics Ch. 4 Newton's Laws

Front

Tendency of an object to resist motion change

Back

inertia

Answer explanation

Inertia is the property of an object that causes it to resist changes in its state of motion. It explains why a stationary object stays still and a moving object continues to move unless acted upon by an external force.

Front

Most inertia?

Back

Front

Objects with greater _________ have greater inertia.

Back

mass

Answer explanation

Objects with greater mass have greater inertia, meaning they resist changes in motion more than lighter objects. Inertia is directly related to mass, not speed, force, or friction.

Front

Inertia keeps a resting object at ________.

Back

rest

Answer explanation

According to Newton's first law of motion, an object at rest will remain at rest unless acted upon by an external force. Therefore, the correct answer is 'rest', as it directly reflects the state of the object due to inertia.

Front

Objects with inertia

Back

All objects with mass

Answer explanation

Inertia is a property of all objects with mass, meaning they resist changes to their state of motion. This applies to objects at rest and in motion, making 'all objects with mass' the correct answer.

Front

A car pushed does not move. What is true about its inertia?

Back

The car's inertia is too great.

Answer explanation

The inertia of the car is too great because inertia is the resistance of an object to changes in its state of motion. Since the car does not move despite the push, it indicates that its inertia is greater than the force applied.

Front

Least inertia?

Back

Front

A skateboard rolls down a hill, reaches a level surface, and stops. This is best explained by:

Back

the presence of an unbalanced force can cause a moving object to stop.

Answer explanation

The skateboard stops due to the presence of an unbalanced force, such as friction or air resistance, acting against its motion. This force is necessary to bring a moving object to a stop.

Front

All objects have inertia.

Back

True

Answer explanation

True. All objects possess inertia, which is the property that causes them to resist changes in their state of motion. This fundamental principle applies universally to all matter.

Front

Damage caused by leaping over a small building.

Back