PHYSICAL SCIENCE MID TERM EXAM SAMPLE. MIDTERM
EXAM REVISION QUESTIONS AND CORRECT ANSWERS
(GRADED A+) (100% GUARANTEE) (2024 UPDATE)
What are balanced forces? - ANSWER- forces that are equal in size but opposite in direction,
balanced forces cause no change in motion, and the object won't move
what are unbalanced forces? - ANSWER- forces that cause a change in the motion of an object,
they aren't equal and opposite, more than one force can act on an object at the same time
What is a net force? - ANSWER- combo. of all the forces acting on an object
What is acceleration? - ANSWER- Acceleration is when you are changing the speed at which
you're going at. For example, you cannot be accelerating when you're going at a constant speed
because it's constant, and is not changing.
what is acceleration? (specific) - ANSWER- the rate at which an object changes its velocity
Can acceleration occur when there is a change in direction? - ANSWER- acceleration also
occurs when there is a change in direction. It can be a slight bend in the road which can cause an
increase in acceleration, but a less sharper turn can cause a lower acceleration because there is a
smaller change in direction
How do you calculate acceleration? - ANSWER- final velocity- initial velocity/time = average
acceleration
What is a vector quantity? - ANSWER- has both a magnitude and a direction
EXAM REVISION QUESTIONS AND CORRECT ANSWERS
(GRADED A+) (100% GUARANTEE) (2024 UPDATE)
What are balanced forces? - ANSWER- forces that are equal in size but opposite in direction,
balanced forces cause no change in motion, and the object won't move
what are unbalanced forces? - ANSWER- forces that cause a change in the motion of an object,
they aren't equal and opposite, more than one force can act on an object at the same time
What is a net force? - ANSWER- combo. of all the forces acting on an object
What is acceleration? - ANSWER- Acceleration is when you are changing the speed at which
you're going at. For example, you cannot be accelerating when you're going at a constant speed
because it's constant, and is not changing.
what is acceleration? (specific) - ANSWER- the rate at which an object changes its velocity
Can acceleration occur when there is a change in direction? - ANSWER- acceleration also
occurs when there is a change in direction. It can be a slight bend in the road which can cause an
increase in acceleration, but a less sharper turn can cause a lower acceleration because there is a
smaller change in direction
How do you calculate acceleration? - ANSWER- final velocity- initial velocity/time = average
acceleration
What is a vector quantity? - ANSWER- has both a magnitude and a direction
