8J Forces

Question 1

Types of drag are

Answer 1

Water resistance and air resistance

Question 2

How do you reduce drag

Answer 2

Having a streamlined shape

Question 3

What is a magnet

Answer 3

A piece of metals that attracts other metals

Question 4

Examples of magnetic metals

Answer 4

Iron nickel cobalt

Question 5

What are the two end of magnets killed

Answer 5

North Pole and South Pole

Question 6

What is an electromagnet

Answer 6

A magnet made using electricity

Question 7

How to increase strength of an electromagnet

Answer 7

Increase the number coils on the wire
Increase the current in the wire
Use a magnetic core