Intro to force

a force is a

• shout or whisper
• push or pull
• jump or skip
• twist or turn

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A force has two properties

• Speed and time
• Color and shape
• Weight and volume
• Magnitude and direction

you can use a unit to measure force

• Kilogram (kg)
• Newton (N)
• Meter (m)
• Second (s)

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The point of the arrows shows the --------------- of Force.

• Color
• Speed
• Magnitude
• Direction

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There are 2 types of forces name those.

• Contact forces and non-contact forces
• Static forces and dynamic forces
• Push forces and pull forces
• Visible forces and invisible forces

what is the difference between the contact and non-contact forces.

• Contact forces are always attractive, while non-contact forces are always repulsive.
• Contact forces are stronger than non-contact forces.
• Contact forces act at a distance, while non-contact forces require physical touch.
• Contact forces require physical touch, while non-contact forces act at a distance.

when two objects touch each other, it is called_____

• connection
• interaction
• collision
• contact

Name three types of non-contact forces.

• Nuclear force
• Tension force
• Gravitational force, electrostatic force, magnetic force
• Frictional force

Force can change ----------- and ------------.

Why is the magnetic force considered to be a noncontact force?

• Magnets do not have to touch each other to experience a force.

• Magnetic force is only effective when objects are touching each other.
• Magnetic force can only act on objects in direct contact with a magnet.
• Magnetic force requires physical contact to exert its influence.