Force and Motion 1
Force and Motion 2
Force and Motion 3
Force and Motion 4
Force and Motion 5
100
What is a PUSH or PULL on an object?
The two types of 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, usually when two surfaces come in contact and rub against each other. A stopping force.
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 resists motion and decreases how far the ball rolls, causing it to stop.
C. Friction increases how fast the ball rolls.
D. Friction causes the ball to bounce.
B. Friction resists motion and decreases how far the ball rolls, causing it to stop.
100
Name a surface with low friction
ice or something very smooth.
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 force is being applied.
200
What will happen when the South poles of two different magnets face each other?
- They will attract
- They will repel
They will repel.
200
True or False?
An object must be holding still to be balanced. Explain your reasoning and provide an example.
False - an object can be moving and still be balanced as long as their is no change in the object's position or motion.
Example: a car going 60 mph North and continuing with the same speed and direction.
200
True or False?
Gravity is the force that pushes two object away from each other.
False
Gravity pulls two objects towards each other.
200
A) The force of gravity which is acting in the same direction as the arrow
B) The force of friction which is acting in the same direction as the arrow
C) The force of gravity which is acting in the opposite direction as the arrow
D) The force of friction which is acting in the opposite direction as the arrow
D) The force of friction which is acting in the opposite direction as the arrow
300
Which of the following statements is true?
a. Balanced forces cause a change in position.
b. Unbalanced forces cause a change in position.
c. 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
True or false.
A force always causes a change in motion.
False - if the forces acting on an object are balanced, there will NOT be a change in motion. If the forces are unbalanced, there WILL be a change in motion.
300
Name 2 forces acting on a child going down a slide.
Any of the 3:
Gravity - pushes the child down the slide
Friction - the surface of the slide rubbing against the child and slowing them down
The force of the child itself sliding down the slide
300
What is something that uses a push force?
Answers may vary
400
An apple falls to the ground and the moon orbiting Earth are examples of which type of force?
a. contact: gravitational
b. non-contact: gravitational
c. non-contact: magnetic
b. non-contact: gravitational
400
CONTACT OR NON-CONTACT FORCE?
The North pole of one magnet is attracted to the South pole of another magnet and they pull on each other.
A. Contact Force
B. Non-Contact Force
B. Non-Contact
400
A) The force of gravity causes the student to speed up from position A to position B.
B) The force of gravity causes the student to speed up from position B to position C.
C) The force of the student's legs moving causes the motion to stop at position B.
D) The force of the student pulling on the swing causes the motion to stop at position A.
A) The force of gravity causes the student to speed up from position A to position B.
400
A) student 1 pulls the cart to the left while student 2 pulls the cart to the right
B) student 1 pulls the cart to the left while student 2 pushes the cart to the left
C) student 1 pushes the cart to the right while student 2 pushes the cart downward
D) student 1 pushes the cart to the right while student 2 pulls the cart upward
B) student 1 pulls the cart to the left while student 2 pushes the cart to the left
400
Name something that uses a pull force.
Answers may vary.
500
Students play girls against boys tug-o-war at recess. The girls pull to the left with a force of 200N. The boys pull to the right with a force of 250N.
What is the net force and direction the rope will move?
net force = 50N to the right (boys win)
500
Rubbing two rocks together is an example of what?
Friction
500
What is another name for balanced forces?
Equal forces
500
The force of Earth's gravity pulls everything to
a. the edge of the Earth
b. the center of the Earth
c. away from the Earth
b. The center of the Earth
500
An objects location is its ________.
What is position?