Forces

What is force?

• A push or pull on an object.

• Gravity.

• A super power that Yoda uses.

• The strength of an object.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A car is at rest in the middle of the road. What unbalanced forces can you apply to car? (Choose all that apply)

• Speed-pressing the gas pedal will cause the car to speed up and move.

• Gravity-presses down on the car, keeping it at rest.

• Direction-moving forward or in reverse, or turning the steering wheel will change the car’s direction.

• Motion-by pressing the gas pedal, the car will be in motion.

Tags

NGSS.MS-PS2-2

What is an unbalanced force?

• On motion pushes an object and one motion pulls on an object.

• Two equal forces act on an object in the same direction.

• Two forces that are unequal in size and opposite in direction.

• The combined forces acting on an object cause the object to move.

Tags

NGSS.MS-PS2-2

What is a balanced force?

• One motion pushes an object and one motion pulls on an object.

• Two forces equal in size and acting in opposite directions on an object.

• Two forces that are unequal in size and opposite direction.

• The combined forces acting on an object cause the object to move.

Two teams are playing tug-of-war at recess. The center flag moves to the right of the starting point. What type of force is acting on the rope?

• Balanced force-everyone is pulling equally

• Unbalanced force-the team on the right is pulling harder than the team on the left.

• Weak forces-all of the kids on the left team are second graders and the other team is in the fifth grade.

• Gravity-pushes down on the rope and makes it hard to pull.

Tags

NGSS.MS-PS2-2

Do all forces cause movement? (Choose 2)

• Yes, if you push an object it moves.

• No, gravity acts as a force to push a object into the earth.

• No, if you pull up on an object but gravity is stronger than you, the object doesn’t move.

• Yes, if you pull an object it moves.

Tags

NGSS.3-PS2-1

The object stays still or continues to move at the same (constant) speed and in the same direction, is a/an...

• Balanced force

• Unbalanced force

A net force is the overall forces acting on an object. They are measured in...

• pounds (lb)

• ounces (oz)

• newtons (N)

• tons (t)

Tags

NGSS.HS-PS2-1

The object stays still or continues to move at the same (constant) speed and in the same direction, is a/an...

• Balanced force

• Unbalanced force

This type of force causes an object to change in motion, position, direction, and/or speed.

• Balanced force

• Unbalanced force