8.6A Balanced and Unbalanced forces

Front

The sudden movement of tectonic plates is caused by -

Back

unbalance forces

Front

Which of the following objects will experience an unbalanced force?

• A bike rider on a smooth and level road, pedaling at a constant rate.
• A train pulling on another train, each with the same amount of force.
• A chair sitting on the floor with balanced forces acting in opposite directions.
• A ball rolling across the floor with friction acting in the opposite direction.

Back

A ball rolling across the floor with friction acting in the opposite direction.

Front

According to Newton’s Law of Inertia, an object that is moving will change its motion only if what kinds of forces act on it?

Back

Unbalanced forces

Front

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

Back

60 N right

Front

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart? Options:

Balanced Forces, Constant Speed

,

Balanced Forces, Acceleration

,

Unbalanced Forces, Constant Speed

,

Unbalanced Forces, Acceleration

Back

Balanced Forces, Constant Speed

Front

If two forces act on an object in the same direction, the net force is the _____________

Back

the sum of the two forces

Front

What is the net force?

Back

40 N right

Front

What is the net force?

Back

400 N Down at an increasing speed

Front

Why does a book on a table not move?

Back

Forces of the table pushing up and gravity pulling down are balanced

Front

What will cause an object to move?

Back

Unbalanced forces