What type of force is gravity?
Non-Contact
Contact
What force is it?
It's applied force.
What does a paper ball fall faster than a flat piece of paper?
The paper ball has a smaller surface area.
What type of force is magnetism? (Contact/Non-contact, Push/pull)
Non-Contact
Contact
What force is it?
It's normal force.
Choose the correct word: Same poles of a magnet attract OR repel?
Repel
This is an upward forced exerted by a fluid on a submerged object. Force Y.
Upthrust Force
What happens to your mass on the Moon? Is it more or less or same?
Same
Less
More
True or False: Weight is NOT a force.
False
What is the name of forces that are opposite but equal? When the object is at rest.
Balanced forces
True or False: All objects have gravity
True
What is the force in this picture that will make the marble move.
Applied force. The finger applies the force to the marble to move it.
In which units is mass measured?
kilograms (kg)
This force occurs when two surfaces are in contact and move past each other.
Friction Force
What do equal arrows on a force diagram diagram indicate?
The the forces are balanced
Give one example of friction being useful.
Picking up things, walking, brakes on a car
True or False? Air resistance is a type of friction.
True, it's friction between moving objects and the air.
What happens to your weight on the Moon? Is it more or less or same?
It will be less than on Earth because there is less gravity.
It will be more than on Earth because there is more gravity.
It will be the same on Earth because there is same gravity.
When one force is greater than its opposing force, it moves. Therefore the forces are u _ _ _ _ _ _ _ _ _.
Unbalanced forces
This is the force exerted by surface in contact with an object.
normal force
Explain the force in this picture
Magnetism
Choose the correct word: Opposite poles of the magnet attract OR repel?
Attract
How can you make a car have less air resistance? What do we call this type of shape?
Streeamlined Shape
True or False: big objects have a stronger pull towards their centre than smaller objects
True
What are the two ends of a magnet called?
North and south poles
Force can change the d _ _ _ _ _ _ _ _ of a ball.
Direction
Which boy do you think will slide faster, A or B?
A
What is mass?
The amount of matter in an object.
Give one example of air resistance.
Riding a bike, driving a car, skydiving, etc.