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Physical Ed, Science, Physics
1st
grade
year 3 Lecture 1 recap of principles
7 questions
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- Multiple ChoicePlease save your changes before editing any questions.
What is the difference between Mass and Weight?
Weight is applied to animate objects, mass is applied to inanimate objects
Weight is mass x gravitational acceleration
Mass is measured in N and weight is measured in Kg
Your mass can change but your weight stays the same
- Multiple ChoicePlease save your changes before editing any questions.
Force is a vector quantity. What do we mean by vector quantity?
All sides of the force add to 180 degrees
Vector quantities have a magnitude and direction
Vector refers to solely the size of the force
- Multiple ChoicePlease save your changes before editing any questions.
What is the unit of force?
Kg
N
Nm
NmN
- Multiple ChoicePlease save your changes before editing any questions.
What is the value of acceleration due to gravity?
-9.81
-19
10.23
- Multiple ChoicePlease save your changes before editing any questions.
What is Newtons First Law?
A body will continue in a state of rest or uniform motion unless acted upon by an external force
Force = mass x acceleration
For every action there is an equal and opposite reaction
- Multiple ChoicePlease save your changes before editing any questions.
What is Newtons Second Law?
A body will continue in a state of rest or uniform motion unless acted upon by an external force
Force = mass x acceleration
For every action there is an equal and opposite reaction
- Multiple ChoicePlease save your changes before editing any questions.
What is Newtons Third Law?
A body will continue in a state of rest or uniform motion unless acted upon by an external force
Force = mass x acceleration
For every action there is an equal and opposite reaction