Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Science for Leonardo 4 pages
0
%
0
0
0
Back
Restart
What is a force?
A push or a pull.
Oops!
Okay!
Do most forces need contact between objects?
Yes
Oops!
Okay!
When does friction occur?
When two surfaces touch
Oops!
Okay!
What does a magnet have?
a North Pole and a South Pole
Oops!
Okay!
What surfaces don't create lots of friction?
smooth surfaces - ice
Oops!
Okay!
What does friction produce? plus example
heat - rubbing your hands together
Oops!
Okay!
What materials are not attracted to magnets?
Brass, aluminum and wood
Oops!
Okay!
What can forces make you do?
1. speed up, 2. slow down, 3. change direction, 4. change shape
Oops!
Okay!
What surfaces create lots of friction? plus example
rough surfaces - roads
Oops!
Okay!
In order to travel faster through air how should your shape be?
streamlined
Oops!
Okay!
Is friction a force?
yes
Oops!
Okay!
Do magnetic forces need contact or can they act at a distance?
At a distance - don't need contact.
Oops!
Okay!
Do two south poles or two north poles attract or repel?
repel
Oops!
Okay!
Do a North and South Pole attract or repel each other?
attract
Oops!
Okay!
What does air resistance do to moving objects?
slows them down
Oops!
Okay!
Is it easy to run in water?
No, human bodies are not streamlined.
Oops!
Okay!
In order to travel slower through air, what do you need?
a large surface area
Oops!
Okay!
What does water resistance do to moving objects?
slows them down
Oops!
Okay!
Name two animals which have streamlined bodies.
sharks and fish
Oops!
Okay!
What materials are attracted to magnets?
Iron and steel
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies