Physics of Motion
What is the unit for force
Newton
Definition of mass
amount of matter in an object
Friction is an opposing force. Meaning it acts ______ an objects motion
Against/Opposite direction of
Rate of change of velocity
How many months have 28 days?
All of them
If an object is at rest, what is its velocity?
0 m/s
A hammer and a feather are dropped at the same time on the moon. They both reach the ground at the same time. Why?
There is no air, so all objects will fall at the same rate / free fall
Which female singer has the most Grammy?
1. Katy Perry
2. Beyonce
3. Ariana Grande
4. Rihanna
Beyonce
Two conditions of equilibrium
No resultant force
No resultant moment
Which of the planet has the highest number of moons in the Solar System ?
Saturn
What is "g"?
Acceleration due to gravity
How many Harry Potter books are there?
7
An object is thrown straight up. At the top of its flight (max height) the velocity of the object is what?
0 m/s
How many teeth does an adult human have?
32
Which form of government can be seen in Malaysia? Parliamentary / Dictatorship / Presidential/ Constitutional Mornarchy
Parliamentary
What are the five colors of the Olympic rings?
Blue, yellow, black, green, and red.
Definition of moment
The product between force and perpendicular distance from pivot
What are the 2 factors that affects the stability of an object ?
Centre of gravity
Base area
In term of impulse, explain how seat belt reduce the injury during an accident
increase contact time, reduce impact force
Which country is best known as the Land of the Midnight Sun?
Norway
The distance a car travelled if it drove at 40 m/s for 30 minutes
What is 72 km?
D = v*t = 40 m/s * 1800 s
D= 72,000 m = 72 km
find the mass of an object that is traveling at acceleration of 20m/s2 and a force of 10,000N
m= F/a = 10,000 / 20
m= 500 kg
Australia is moving north at a speed of 7cm per year. How many years will it take Australia to move north by 1 m ?
14.2 years
Markey Mark runs across the basketball court 5 times (from one side back to the other 5 times). Ending in his original starting place. What is Markey Mark's displacement at the end of his run?
0 meters. He ended where he started
Convert 5678 kg/m3 to g/cm3 . (within 3 seconds)
5.678 g/cm3