Forces
The two types of forces are...
Contact and non-contact.
Is gravity push or pull force?
Pull
True or False: Mass is measured in Newtons
False, it's measured in kg
True or False: Upthrust allows us to swim.
True
Magnetism is push, pull or push and pull?
Push and pull
Paperclips moving towards a magnet is contact force or non-contact force?
Non-contact force.
Is gravity stronger on the Earth or the moon?
Earth
A dog weighs more on the moon or on Earth?
Earth
True or False, the mass and volume of an object influence the amount of upthrust?
True
Opposite poles attract or repel each other?
Attract.
Squeezing a brick… change shape or doesn't change shape?
Doesn't change shape.
True or False: All objects have gravity.
True.
True or False, weight is a force
True
Upthrust is contact or non-contact force?
Contact
T or F: We can see the magnetic field.
False.
A boy kicks a football is balanced or unbalanced force?
Unbalanced
Gravity is a contact or non-contact force?
Non-contact.
What is weight measured in?
Newtons
T or F: Upthrust is when a leaf falls to the ground
False.
Name two materials for man-made magnets.
Iron and steel
Opening a door is contact or non-contact force?
Contact.
Who discovered gravity?
Isaac Newton
Write the formula for calculating weight.
weight = mass x gravity
A bottle floats is an example of upthrust, T or F?
True.
Name the mineral that is a natural magnet.
Magnetite.