introduction to forces

 

what is forces in physics?

• Make (someone) do something against their will.

• Push or Pull upon an object resulting from the object's interaction with another object

• Mental or moral strength or power

• all

Frictional forces for surface normally happen because of?

• rough surface

• Newton's third law

• smooth surface

which one is normal force?

• N

• mg

• mg Sin titah

• F

Lift force is equal to

• m (mass) x a (acceleration)

• m (mass) x a (acceleration)

• m (mass) x g (gravity)

If the velocity of an object is constant, the drag force will be equivalent to thrust force. is it true or false?

• True

• False

drag force happen because of

• the shape of an object

• the colour of an object

• the weight of the object

other than thrust, what is the other forces required for aircraft to fly?

• lift force

• normal force

• forward force

What type of force is shown in the picture?

• Push

• Pull

The force of ......... brings the man to the ground.

• Friction

• Gravity

• Air resistance

• spring force