Balance and Motion

Front

What is the force that pulls objects towards the Earth?

Back

Gravity is the force that pulls objects towards the Earth.

Front

What is needed to initiate the spinning motion of a top?

Back

You need to apply a force with your hands to start the top spinning.

Front

What indicates that an object is in a stable position?

Back

An object is in a stable position if its counterweights are below the balance point.

Front

What must happen for a marble to move on a runway?

Back

The marble must start at a higher position and end at a lower position.

Front

What do wheels, cups, and spheres have in common?

Back

Wheels, cups, and spheres all have the ability to roll.

Front

What is the definition of balance in terms of forces?

Back

Balance occurs when the forces acting on an object are equal and opposite, resulting in no net force.

Front

How does friction affect motion?

Back

Friction is a force that opposes motion, making it harder for objects to move.

Front

What is the role of counterweights in maintaining balance?

Back

Counterweights help stabilize an object by lowering its center of gravity.

Front

What is inertia?

Back

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

Front

How does the height of an object affect its potential energy?

Back

The higher an object is, the more potential energy it has due to gravity.