Force and Motion 1
Force and Motion 2
Force and Motion 3
Force and Motion 4
100
What is a PUSH or PULL on an object?
Force
100
CONTACT or NON-CONTACT FORCE?
A boy using his foot to kick a soccer ball.
A. Contact
B. Non-Contact
B. CONTACT FORCE
100
The force that acts directly against the direction of motion.
What is friction?
100
A golf ball rolls down a hill on the golf course. Which statement best describes how friction affects the motion of the golf ball?
A. Friction causes the golf ball to roll forwards and backwards.
B. Friction decreases how far the ball rolls.
C. Friction increases how fast the ball rolls.
D. Friction causes the ball to bounce.
B. Friction decreases how far the ball rolls.
200
If these boys are each pulling with the force of 10 newtons. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
They will not move at all. Balanced
200
CONTACT or NON-CONTACT FORCE
Leaves falling from tree branches to the ground.
A. Contact
B. Non-Contact
B. Non-Contact
200
True or False: Gravity is a force that pulls objects down to Earth.
True
200
The invisible area around a magnet is called the _______________________. When a magnetic material is inside of this area, it will be attracted or repeled by the magnet.
magnetic field
300
Which of the following statements is true?
Balanced forces cause a change in position.
Unbalanced forces cause a change in position.
Forces do not affect position.
Unbalanced forces cause a change in position.
300
CONTACT FORCE or NON-CONTACT FORCE:
Using your fingers to play the piano.
A. Contact Force
B. Non-Contact Force
A. Contact Force
300
A soccer ball is at rest on the ground. When a force is applied to it, it moves. If larger force is applied to it, how will the motion of the soccer ball change?
A. The ball will move slower.
B. The ball will move farther with move faster.
C. The ball will come to a stop.
C. The ball will move faster.
300
Forces on an object that is moving at a constant speed (or at rest) need to be ____________.
Balanced
400
What unit is used to measure force?
A. Centimeters (cm)
B. Grams (g)
C. Newtons (N)
C. Newtons
400
CONTACT OR NON-CONTACT FORCE?
The magnetic needle of a compass always points north.
A. Contact Force
B. Non-Contact Force
B. Non-Contact
400
Is gravity a contact or non-contact force?
non-contact. You don't have to be touching the surface of the Earth in order to get pulled towards it.
400
All magnets have 2 of these. They are called the north and south __________ of the magnet.
poles
500
What non-contact force pulls a ball back to earth?
Gravity
500
Name the Contact Force & Non-Contact Force in the scenario.
A girl throws a baseball into the air. The ball falls to the ground.
Contact Force: girl throws the ball
Non-contact force: ball falls to the ground (gravity)
500
Name 2 forces that are "non-contact"
1. gravity
2. Magnetism
500
1. What happens when the same poles of 2 different magnets are facing each other?
2. What happens when opposite poles of 2 different magnets are facing each other?
1. Same poles REPEL.
2. Opposite poles ATTRACT.