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?
Force
100
CONTACT or NON-CONTACT FORCE?
A boy using his foot to kick a soccer ball.
B. CONTACT FORCE
100
The force that one surface exerts on another when the two rub against each other.
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.
100
High friction or low friction material?
ICE
LOW
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 is the distance traveled per unit of time?
What is SPEED?
200
The force of Earth's gravity pulls everything to where?
The center of the Earth
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
High or low friction material?
carpet
HIGH
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.
B. Unbalanced forces cause a change in position.
300
Using your fingers to play the piano.
A. Applied Force
B. Support force
c. Friction force
A. Applied Force
300
What is Newton's second law of Motion?
F=MA
300
Acceleration due to Earth's gravity
9.8 m/s2
300
applied, support and friction are what type os forces?
contact
400
Newton's first last of motion states:
an object at rest will stay at rest
400
CONTACT OR NON-CONTACT FORCE?
The magnetic needle of a compass always points north.
B. Non-Contact
400
What is more reliable in physics: weight or mass?
Mass
400
Which two factors impact the force of gravity?
Mass and Distance
400
Electric force: contact or Non-contact?
Non-contact
500
True or false?
Whatever you push or pull, there will always be pushing or pulling back on you.
True
500
Which of the following is an example of friction?
1. kicking a ball
2. Speeding up your car
3. erasing a mistake on a test
3. erasing a mistake on a test
500
the speed at any one given point in time
instantaneous speed
500
What does this show?
Conservation of momentum
500
How do non-contact forces interact with objects without touching them?
their field
600
The rate of change of velocity
acceleration
600
If a giant gorilla is leaning on a wall the force being put on the wall is _____________________ to the force being added by the gorilla.
- Equal
- Greater
- Smaller
Equal
600
What is Newton's third law of motion?
For every action there is an equal and opposite reaction.
600
Surface area and velocity affect this type of fluid friction ___________
air resistance
600
Where are the magnetic fields the strongest?
poles