Forces Flashcards
What is the unit of force and what can it be shortened to?
The unit of force is Newtons and can be shortened to (N)
Attract or Repel?
A positive and negative rod?
Attract
Which of the following situations depend on frictions?
- Stopping at the end of a 100m race
- Throwing a javelin
- Planet moving through space
- Turning a corner on a bicycle
- Stopping at the end of a 100m race
- Throwing a javelin
- Turning a corner on a bicycle
Attract or Repel?
Two magnetic south poles?
Repel
Complete. (Applicable to earth)
Mass (kg) Weight (N)
2 1._________
2.________ 5
- 20
2. 0.5
Attract or Repel?
A magnetic North Pole and a magnetic South Pole?
Attract
The planet called Hrind has a gravitational pull of 14N/kg. What would the weight of a 100kg person be on this planet?
Is this greater or less than their weight on earth?
1400N
Greater
Friction:
Helps things slide past each other
Prevents things sliding past each other
Prevents things sliding past each other
Attract or Repel?
Two positively charged rods?
Repel
Many fish, boats and cars have a smooth, rounded shape. This is to reduce 1.___________. Designing the shape of something to do this is called 2.___________.
- Drag
2. Streamlining
What is a force?
A push or a pull
Forces can be measured by a… ?
Newton Balance/Newton Meter
Complete the passage with these words (you may use some words more than once)
Kilograms. Weight. Newtons. Mass. Planet.
1.__________ is a measure of how much material makes up an object. It is measured in 2.__________. 3.__________ is the force of gravity on an object. It is measured in 4.__________ and depends on the 5.__________ of the object and the 6.__________ it is on.
- Mass
- Kilograms
- Weight
- Newtons
- Mass
- Planet
