Force
What is force?
It is any interaction that, when unopposed, will change the motion of an object.
What is a magnet?
A magnet is an object (generally a metal) that has a north and south pole, such that opposite poles attract and like poles repel.
What is motion?
It is the change of position.
Which law of motion is also known as the law of inertia?
Newton's first law of motion
What is the push or pull on an object that can cause it to accelerate called?
A: mass
B: force
C: density
D: speed
Force
Opposite poles....
(Attract/Repel)
Attract
What is displacement?
Change in position of an object.
There are how many laws of motion?
3
Q: What is the unit of measure for force?
A: Amp
B: Seconds
C: Newton
D: Erg
Newton
Similar poles....
(Attract/Repel)
Repel
Motion means a change in the position of an object with reference to...
A. initial point
B. final point
C. time
D. space
Time
What causes the motion of a body which is initially in the state of rest:
Force
What is the sum of all forces acting on an object called?
A: gravity
B: reaction force
C: acceleration
D: net force
Net force
Mention the two types of magnets.
Permanent magnets and temporary magnets.
What is acceleration?
It is the rate of change of the velocity of an object.
Inertia is defined as:
Property of mass to accelerate
In a tug of war, when one team is pulling with a force of 100 N and the other 80 N, what is the net force?
A: 20 N
B: 80 N
C: 100 N
D: 180 N
20 N
Mention three shapes of magnets.
- Horseshoe Magnets.
- Sphere Magnets.
- Bar Magnets
- Ring Magnets.
- Cylinder Magnets.
- U-shape Magnets.
- Circular Magnets.
Which of the following terms is used to describe the motion?
D. all of these
All of these
When an object is at rest velocity and acceleration is zero:
Object continues to be at rest.