Balanced and Unbalanced forces

All objects around us can move by the effect of ......................

• pushing force only

• pulling force only

• pushing and pulling forces

• sound and light energies

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When an object is in motion, this means that its .................... changes.

• color

• shape

• size

• position

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

A ball may move away from the foot of a football player by the effect of ..................................

• pushing force only

• pulling force only

• pushing and pulling forces

• sound energy only

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When you sit on a chair, the force of gravity is ................ and holding you on the chair.

• pulling you upward

• pulling you downward

• pushing you upward

• pushing you downward

Tags

NGSS.5-PS2-1

Which of the following will cause an object to move?....................

• Balanced forces

• Unbalanced forces

Tags

NGSS.MS-PS2-2

In the tug-of- war game, two teams ...................................

• pull the rope in the same direction

• push the rope in the same direction

• pull the rope in the opposite directions

• push the rope in the opposite directions

Tags

NGSS.MS-PS2-1

Which of the following is an example of unbalanced forces?......................

• Two children push the box with the same force in opposite directions.

• Two children play on a seesaw, that moves up and down

• Two children play on a seesaw, without its moving up and down

• Two teams play the tug-of-war game while the rope doesn't move.

Tags

NGSS.MS-PS2-2

All of the following are examples of motion, except ...........................

• a running person

• a ball travelling through the air

• a flying bird

• a sleeping dog

You can see the movement of the following objects, except the movement of................................

• a flying airplane

• a running horse

• sea waves

• the planet Earth

Two equal forces act at the same time on a stooping object but in opposite directions. Which sentence describes the object's state?..................................

• The object stays in its place without moving

• The object speed increases

• The object speed decreases

• The object speed doesn't change

Tags

NGSS.MS-PS2-2