Force and Motion Quiz

What are balanced and unbalanced forces? (Assume they are acting together)

• Forces that cause a change in motion

• Forces that are always in motion

• Forces that cancel each other out

Tags

NGSS.MS-PS2-2

How do unbalanced forces cause a change in position, direction, and speed of an object?

• By being equal in size and opposite in direction

• By causing the object to remain at rest

• By acting on the object to cause motion

Tags

NGSS.MS-PS2-2

What kind of force occurs when a person or object directly pushes or pulls another object?

• Normal force

• Applied force

• Gravity's force

• Air resistance

Tags

NGSS.MS-PS2-1

What are balanced forces?

• The overall force acting on an object, expressed in Newtons (N)

• When unequal forces cause an object to move

• When two equal forces act on an object in opposite directions

• A force that causes an object to start moving from rest

Tags

NGSS.3-PS2-1

How is net force defined?

• The force that keeps an object at rest

• The force that is only present when an object is moving

• The overall force acting on an object, expressed in Newtons (N)

• The force that is the sum of all balanced forces acting on an object

Tags

NGSS.MS-PS2-2

What happens when two forces are equal in size and act in opposite directions on an object?

• The object falls

• The object stays still or continues to move at the same speed and in the same direction

• The object disappears

Tags

NGSS.MS-PS2-2

Which of the following is an example of balanced forces?

• A car speeding up

• A soccer ball sitting on the ground, not moving

• A book falling off a table

• A rocket launching into space

What does an object at rest indicate about the forces acting on it?

• The forces are unbalanced, and the object is accelerating.

• The forces are balanced, and the object is moving at a constant speed.

• The forces are balanced, and the object is not changing its motion.

• The forces are unbalanced, and the object is moving in a random direction.

What can be inferred about the forces acting on an object moving at a constant speed and in the same direction?

• The forces are unbalanced, causing the object to move.

• The forces are balanced, but the object is accelerating.

• The forces are unbalanced, and the object is slowing down.

• The forces are balanced, and the object is moving at a constant velocity.

What are unbalanced forces always responsible for changing?

• Temperature

• Motion

• Color

• Shape

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2