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WorksheetsSK2 Chapter 12 - Dynamics
Total questions: 10
Worksheet time: 5mins
What does dynamics study?
Shape of objects
Motion without force
Effect of forces on motion
Temperature changes
Which law is also known as the Law of Inertia?
Newton’s Second Law
Newton’s Third Law
Newton’s First Law
Law of Gravity
What is the formula for force according to Newton’s Second Law?
F = m + a
F = m × a
F = m ÷ a
F = a ÷ m
Which of the following is a type of force?
Magnetic force
Applied force
Thermal force
Optical force
What is the unit of force in SI?
Joule
Watt
Newton
Pascal
Which force opposes the motion of an object across a surface?
Gravity
Normal force
Friction
Applied force
What does Newton’s Third Law state?
Force equals mass times acceleration
Objects in motion stay in motion
For every action, there is an equal and opposite reaction
Momentum is conserved
What is the formula for momentum?
p = m + v
p = m × v
p = m ÷ v
p = v ÷ m
What happens to momentum in an isolated system without external force?
It increases
It decreases
It remains constant
It disappears
Why does a heavy truck moving fast have high momentum?
Because it has low mass and low velocity
Because it has high mass and high velocity
Because it has high acceleration
Because it has low friction
