Dimension Motion
Projectile Motion
Newtons law forces
Work,energy, and power
Momentum
100
(Z) What is the SI unit for acceleration?
Question options:
m/s
m/s^2
m/s^3
m/s^4
The SI unit for acceleration is m/s^2 (meters per second squared).
100
Which of the following measurements is NOT a Scalar?
Question options:
Time
Speed
Distance
Displacement
The correct option is:
Time
100
Egg A is dropped from a height of 1m onto the floor. Egg B is dropped from a height of 1m into a bucket of water. Which statement correctly describes why Egg B does not break?
Question options:
Egg B experiences greater force over a longer time
Egg B experiences greater force over a shorter time
Egg B experiences less force over a longer time
The correct statement is:
Egg B experiences less force over a longer time.
100
What is an object's change in momentum equal to?
Question options:
the force acting on the object
the impulse acting on the object
the change in velocity of the object
The correct statement is:
the impulse acting on the object.
100
A stunt person jumps from the roof of a tall building, but no injury occurs because the person lands on a large, air-filled bag. Which one of the following BEST describes why no injury occurs?
Question:
The bag provides the necessary force to stop the person.
The bag provides an impulse greater than the person's change in momentum by decreasing the time of impact.
The bag provides an impulse equal to the person's change in momentum by increasing the time of impact.
The correct option is:
The bag provides an impulse greater than the person's change in momentum by decreasing the time of impact.
200
(Z) What is the difference between speed and velocity?
Question options:
Speed is a scalar quantity, while velocity is a vector quantity
Speed is measured in meters per second, while velocity is measured in meters
Speed represents the total distance covered, while velocity represents the change in position
Speed is always positive, while velocity can be negative or positive
The correct option is:
Speed is a scalar quantity, while velocity is a vector quantity.
200
Which of the following is an example of two-dimensional motion with constant acceleration?
Question options:
A car moving on a straight road
A ball thrown at an angle
A pendulum swinging back and forth
A rocket launching into space
The correct option is:
A ball thrown at an angle.
200
Rank the magnitude of acceleration from least to greatest?
A B C D
Question 31 options:
A>B>C>D
A=B>C<D
D<C<B<A
D>C>B>A
The correct option is:
A > B > C > D
200
A golf club has 10 kg m/s of momentum when it hits a golf ball that is at rest. After the collision, the golf club has a momentum of 1 kg m/s and the golf ball has a momentum of 9 kg m/s. Which of the following comparisons is TRUE about the change in momentum of the two objects?
Question options:
the change in momentum is equal and opposite for the two objects
the change is momentum was unequal for the two objects
the change in momentum is the same for the two objects
The correct option is:
The change in momentum is equal and opposite for the two objects.
200
Object A, with a mass of 5kg, is moving at a velocity of 3 m/s while Object B, with a mass of 3 kg is moving at a velocity of -5 m/s. Based on the calculations of their momentum, which of the following statements is correct?
Question options:
The magnitude of the objects momenta are equal but their directions are opposite
The magnitude of object A's momentum is greater than object B's momentum
The magnitude of the objects' momenta and direction are equal
The correct option is:
The magnitude of the objects' momenta is equal, but their directions are opposite.
300
(Z) Which of the following represents the relationship between velocity and time for an object moving with constant acceleration?
Question options:
A linear graph
A parabolic graph
An exponential graph
A sinusoidal graph
The correct option is:
A linear graph.
300
A ball rolls off a table. If the ball rolls off with twice the velocity, the time it takes to hit the floor _________ and the distance traveled horizontally _________
Question options:
Is the same, cut in half
Is the same, the same.
Is the same, doubled.
doubled, doubled.
The correct option is:
Is the same, the same.
300
A man is whirling a 0.5 kg ball on a 1.0 m long string at 2 m/s. What is true about the force on the ball?
Question options:
It pushes out, away from the center of the circle
It pulls in, toward the center of the circle
It pushes forward, tangent to the circle
There is no force on the ball
The correct option is:
It pulls in, toward the center of the circle.
300
A layer of padding is added to car dashboards because it can reduce some injuries during a collision. How does the padded dashboard make people safer?
Question options:
It increases the force of impact during the collision
it increases the time of impact during the collision
It decreases the momentum during the collision
It decreases the impulse during the collision
The correct option is:
It increases the time of impact during the collision.
300
Object A, with a mass of 5kg, is moving at a velocity of 3 m/s while Object B, with a mass of 3 kg is moving at a velocity of -5 m/s. Based on the calculations of their momentum, which of the following statements is correct?
Question options:
The magnitude of the objects momenta are equal but their directions are opposite
The magnitude of object A's momentum is greater than object B's momentum
The magnitude of the objects' momenta and direction are equal
correct statement is:
The magnitude of the objects' momenta are equal but their directions are opposite.
400
How does speed and direction change in one-dimensional motion when an object experiences constant acceleration?
Correct statement is:
Speed increases or decreases based on the direction of acceleration.
400
What launch angle is often considered optimal for achieving the maximum horizontal range in projectile motion?
a) 0 degrees.
b) 30 degrees.
c) 45 degrees.
d) 60 degrees.
Correct answer:
C. 45 degrees
400
In the context of Newton's laws, what is the natural tendency of objects at rest?
a) To stay at rest.
b) To accelerate.
c) To move in a circular path.
d) To float in mid-air.
The correct answer is:
a) To stay at rest.
400
According to the law of conservation of energy, what happens to the total energy of an isolated system?
a) It increases.
b) It decreases.
c) It remains constant.
d) It becomes negative.
The correct answer is:
c) It remains constant.
400
How is the impulse experienced by an object related to its change in momentum?
a) Impulse=Change in Momentum
b)Impulse=Mass×Acceleration
c) Impulse=Force×Time
d) Impulse=Velocity×Time
The correct answer is:
Answer: a) Impulse=Change in Momentum
500
What role does kinetic energy play in understanding the motion of objects in one dimension?
The correct statement is:
In one-dimensional motion, kinetic energy represents the energy of a moving object, crucial for understanding its motion.
500
What factors determine the trajectory of a projectile?
a) Only initial speed.
b) Only launch angle.
c) Initial speed and launch angle.
d) Only the mass of the projectile.
The correct answer is:
Answer: c) Initial speed and launch angle.
500
According to Newton's law of gravitation, what determines the gravitational force between two objects?
a) Mass and velocity.
b) Mass and distance.
c) Velocity and time.
d) Acceleration and displacement.
The correct answer is:
b) Mass and distance.
500
If you lift a book to a higher shelf, what type of energy does it gain?
a) Kinetic energy.
b) Thermal energy.
c) Gravitational potential energy.
d) Elastic potential energy.
The correct answer is:
c) Gravitational potential energy.
500
If the mass of an object increases while its velocity remains constant, how does its momentum change?
a) Increases.
b) Decreases.
c) Remains constant.
d) Becomes zero.
The Correct answer is:
a) Increases.