EXAM 146 QUESTIONS WITH VERIFIED ANSWERS
2025/2026
have magnitude and direction - CORRECT ANSWER Vector quantities
force, velocity, momentum, acceleration - CORRECT ANSWER Examples of vector
quantities
Only have magnitude and no direction - CORRECT ANSWER Scalar quantities
speed, distance, time - CORRECT ANSWER Examples of scalar quantities
represented by an arrow - the length of the arrow shows the magnitude. The
direction of the arrow shows the direction of the quantity - CORRECT ANSWER
Vectors
a push or pull on an object that is caused by it interacting with something -
CORRECT ANSWER A force is
contact force - CORRECT ANSWER when two objects are touching for the force to
act, its a ....
friction, air resistance, tension in ropes. etc - CORRECT ANSWER examples of
contact forces
,non contact force - CORRECT ANSWER If the objects do not need to be touching
for the force to act, the force is a ......
magnetic force and gravitational force - CORRECT ANSWER examples of non
contact forces
- makes all things fall towards the ground
- gives everything a weight - CORRECT ANSWER Two effects of gravity
The amount of material an object is made of
It is the same value everywhere
Measured using a mass balance - CORRECT ANSWER What is mass?
The force acting on an object due to gravity
It depends on the strength of the gravitational field at the location of the object
Measured using a calibrated spring balance - newtonmeter - CORRECT ANSWER
What is weight?
Weight (N) = Mass (kg) x Gravitational Field Strength (N/kg)
W=mg - CORRECT ANSWER Equation for Weight
mass - CORRECT ANSWER What is weight directly proportional to?
, Diagrams that show all the forces acting on an object - CORRECT ANSWER What
are free body diagrams?
The single force that replaces multiple forces acting at a single point - CORRECT
ANSWER What is the resultant force?
When a force moves an object through a distance, energy is transferred and work
is done on the object - CORRECT ANSWER How is work done?
Work done (J) = Force (N) x Distance (m)
W=Fs - CORRECT ANSWER Equation for 'Work Done'
1Nm - CORRECT ANSWER What is 1J equal to?
equilibrium - CORRECT ANSWER If all the forces acting on an object combine to
give a resultant force of zero then the object is in ?
It may stretch, compress or bend - CORRECT ANSWER What could happen when
you apply a force to an object?
The object can go back to its original shape and length after the force has been
removed - CORRECT ANSWER What happens when an object is elastically
deformed