Show:
What Force?
What happens when...
Vocabulary
Balanced or Unbalanced
Random
100
What type of force opposes motion?
What is Friction
100
If two negative ends of a magnet are brought together, what will happen?
They will repel eachother
100
A push or a pull
Force
100
Jack and Jill pull on opposite ends of a rope. Jill pulls harder than Jack, so the rope moves towards her.
Unbalanced Force
100
Stephanie started pushing a bookcase across the room. Then, she removed the books and continued pushing with the same force and direction. How does removing the books affect the motion of the bookcase?
The mass is decreased, making the bookcase move faster
200
When a ball is thrown into the air, what force causes it to fall back toward the ground?
What is Gravity
200
If the positive side and the negative side of a magnet are brought close to one another, what will happen?
They will attract one another
200
A force that pulls everything towards the center of Earth
Gravity
200
Joey and Casey push a box in the same direction. The box slides across the floor.
Unbalanced force
200
Jane likes to play many types of sports. During the course of a week, she goes bowling and plays soccer, baseball and volleyball. Jane thinks the bowling requires the most force to move. Why is she correct?
It has the most mass
300
John and Jack are playing tug of war. As they both pull on the rope, they both stay in the same spot. The flag in the middle of the rope does not move closer to either person. What type of force causes the rope to stay in the same place?
What is a balanced force?
300
Jack is pulling an empty wagon down the sidewalk. His brother climbs into the wagon. Unless Jack increases the force he is using to move the wagon, what will happen?
The wagon will slow down.
300
A force theat opposes or acts against motion when two surfaces rub against eachother; occurs when two surfaces rub against each other
Friction
300
A pencil sits on the edge of the desk and does not fall to the floor.
Balanced Force
300
A block of wood is pushed across wet ice, thick carpet, a glass mirror, and waxed wood. For which of these surfaces will friction be the greatest?
Thick carpet
400
A skateboarder stands at the top of a ramp. The skateboarder slowly leans forward until they begin to roll down the ramp. What type of force causes the board to start moving?
What is an unbalanced force?
400
Cart A has a weight of 10 pounds. Cart B has a weight of 17 pounds. If the same force is applied to both carts, which one will move the farthest?
Cart A
400
forces that do not cancel each other out when acting together on a single object, so motion will occur
unbalanced forces
400
Anna swings up and down on the swing set.
Unbalanced force
400
Mary is pushing her brother ,Steve, in a toy car. He gets out and his friend, who has more mass than Steve, gets into the car. If Mary wants the car to go the same distance as it did when she pushed Steve, what should she do?
Push the car with more force
500
Jackie holds an object in her hand. She waves it 2 inches over a pile of iron shavings. The iron shavings are attracted to the object in her hand. What force causes this?
What is magnetism?
500
Steve pushes a cart with 3 books so it just reaches the end of a track. Next, he puts six books onto the cart. What does he have to do so that the cart reaches the end of the track?
Use more force
500
forces that cancel each other out when acting together on a single object, so no motion will occur
Balanced forces
500
A roller coaster stops at the top of the hill and gets stuck.
Balanced Force
500
A rock is balanced on the side of a hill. Although it is heavy, a gentle push moves it. How can a small force cause a large mass to move?
the small force caused the forces acting on the rock to become unbalanced