What happens when forces are unbalanced?

• An object will remain at rest.

• An object will accelerate, meaning it will speed up, slow down, or change direction.

• An object will only change direction.

• An object will stop moving.

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NGSS.MS-PS2-2

What is an example of balanced forces in everyday life?

• A person sitting in a chair experiences balanced forces; their weight is balanced by the support of the chair.

• A car accelerating on a highway.

• A book sliding off a table.

• A person pushing against a wall with no movement.

What are unbalanced forces?

• Unbalanced forces occur when two or more forces acting on an object do not cancel each other out, causing the object to move.

• Unbalanced forces are forces that are equal in magnitude and opposite in direction, resulting in no movement.

• Unbalanced forces are forces that act on an object but do not affect its motion at all.

• Unbalanced forces occur when an object is at rest and no forces are acting on it.

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NGSS.MS-PS2-2

How does direction affect force?

• The direction of a force determines where an object will move; changing the direction of the force can change the object's path.

• The direction of a force has no effect on the object's movement.

• Forces only act in a straight line and do not change direction.

• The direction of a force only affects the speed of the object.

What is the effect of not applying enough force?

• An object will always move quickly.

• An object may not move or may move very slowly.

• An object will break apart.

• An object will float in the air.

Tags

NGSS.MS-PS2-2

What is the relationship between force and motion?

• Force is needed to change the motion of an object; without force, an object will not start moving or will keep moving at the same speed.

• Force is only required to stop an object from moving.

• Motion can occur without any force acting on an object.

• Force and motion are unrelated concepts.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What are balanced forces?

• Forces that cause an object to accelerate in one direction.

• Two or more forces acting on an object that cancel each other out, resulting in no change in motion.

• Forces that always act in the same direction.

• Forces that increase the speed of an object.

What is an example of changing direction of force?

• A skateboarder turns by leaning to change the direction of the force applied.

• A car accelerates by pressing the gas pedal.

• A ball rolls down a hill due to gravity.

• A person pushes a door to open it.

What is an example of a situation with unbalanced forces?

• A tug of war where one team pulls harder than the other, causing the rope to move toward the stronger team.

• A book resting on a table, with equal forces acting on it from above and below.

• A car moving at a constant speed on a straight road.

• A person pushing a stationary wall with all their strength.

Tags

NGSS.MS-PS2-2

What is an example of unbalanced forces?

• A person pushes a shopping cart, causing it to move.

• A book resting on a table.

• A car parked on a hill.

• A ball rolling on a flat surface without any push.

Tags

NGSS.MS-PS2-2