Vocabulary
Motion
Forces
Gravity
Magnetic Forces
100
A push or pull on something.
What is force?
100
The tendency of an object to resist a change in motion.
What is intertia?
100
Mrs. Kunkel rolled a marble across the floor to Mrs. Plummer What force started the ball rolling? (balanced force, unbalanced force, gravity, friction)
What is an unbalanced force?
100
The measure of the pull of gravity on an object.
What is weight?
100
A force that causes metal objects with opposite poles to move towards each other.
What is attraction?
200
Force that acts on an object when it rubs against another object or material.
What is friction?
200
In order to change the motion of objects, you would have to apply this, which is a push or a pull.
What is an unbalanced force?
200
This is the force that acts on a space shuttle as it accelerates toward Earth.
What is gravity?
200
The measure of how much matter is in an object.
What is mass?
200
A force that causes metal objects with the same poles to move away from each other.
What is repel?
300
A force that requires two pieces of matter to touch.
What is contact force?
300
Which will experience more acceleration when the same force is applied, a 10kg object or a 5kg object?
What is the 5kg object?
300
Friction is a force caused by___________.
What is surfaces rubbing against one another?
300
Suzette drops a ball and it falls to the ground. What does this illustrate about gravity?
A. Gravity pulls the ball toward the center of Earth. B. Gravity causes the friction on the ball to disappear.
C. Gravity pushes the ball away from Suzette’s hands.
D. Gravity causes the mass of the ball to decrease as it falls.
A. Gravity pulls the ball toward the center of Earth.
300
Jack and Sara were experimenting with a magnet. They found some objects that a magnet attracts. What material must the objects be made of?
What is iron, cobalt, nickel?
400
The rate at which the speed or direction of an object changes over time.
What is acceleration?
400
Ruben gives a book a push and it slides across the floor. Eventually the book will stop sliding. What is the main reason that the book stops?
Friction causes things to slow down.
400
Elvira pushes a plastic toy car to set it in motion. Which force is NOT acting on the car?
A. pulling force from gravity
B. pushing force from her hand
C. magnetic force from the north pole
D. friction between the wheels and the surface
C. magnetic force from the north pole
400
This force helps form the shape of our stars, planets, and moons by pulling equally from all directions towards their centers.
What is gravity?
400
Alex drops a box of pins on the floor and the pins scatter. His mother hands him an object that attracts the pins so Alex can pick them up more easily. What force most likely causes the pins to stick to the object?
A. gravity
B. friction
C. electrical force
D. magnetic force
D. magnetic force
500
This exists when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction.
What is balanced force?
500
A car is moving at a constant speed. What is a typical way for the driver to change the motion of the car?
A. apply a horizontal force by using the brakes
B. change the mass of the car
C. balance the forces acting on the car
D. remove the friction between the car and the road
A. apply a horizontal force by using the brakes
500
Nathan attaches a stapler to a spring scale. What is the spring scale measuring?
What is the force of gravity?
500
The effect of the moon's gravity on the Earth.
What are the tides?
500
Kanoa holds two bar magnets as shown in the picture. Which of the following best describes what she feels?
A. Magnetic force pulls the magnets together.
B. Magnetic force pushes the magnets apart.
C. The two magnetic fields cancel each other out.
D. The magnetic fields cause the magnets to heat up.
A. Magnetic force pulls the magnets together.