Forces Booklet Flashcards
If one force is greater than the other the forces are then the forces are…
…Unbalanced
What was Newton’s first law of motion?
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
What are ALL forces measured in?
Newtons (N)
What is Mass?
Mass is the measure of the amount of matter in an object.
What is weight?
Weight is the force of gravity pulling down on an object.
Weight is measured in…
Grams/Kilograms
Mass is measured in…
…grams (g) or kilograms (kg)
ALL forces are:
Pushes, Pulls and Twists
Name as many forces as you can think of
Some options: friction, push, pull, twist, electric, magnetic, thrust, upthrust, tension, surface tension, compression, drag, weight, air resistance, lift
What is the unit of measurement for Forces?
Newtons or N and KN
Would your mass change if you were on the moon
No
Would your weight change on Mars
Yes
What are the forces acting on a book on a table
Up thrust from the table and it’s weight pulling it down equally
Name 2 of the 4 rules for drawing force diagrams
Options:
- A force is always drawn with an arrow
- The arrow starts from the object that the force is acting on
- The arrow points in the correct direction
- The length of the arrow represents the size of the force
(kg)
Kilograms
(N)
Newtons
(g)
Grams
The only way to change the mass of an object is…
..add or take away matter
What is matter
stuff
Name one way to change the weight of something.
Options:
- Change the location of the object (e.g. moon)
- Add or take away some matter
If one force of 10N pulling west and 20N pulling east what is the resultant force and in what direction?
10N east
What are the forces acting on a plane
Thrust,gravity,lift,drag
Name some of the forces acting on a moving boat
Gravity,upthrust,friction.thurst,air resistance
What is the resultant force
I dunno u answer
