PHYSICAL SCIENCE EXAM REVISION QUESTIONS. ALL END
YEAR EXAM REVISION QUESTIONS AND CORRECT
ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100%
GUARANTEED
The acceleration due to gravity is lower on the Moon than on Earth. Which of the following is true
about the mass and weight of an astronaut on the Moon's surface, compared to Earth?
A) Mass is less, weight is same. B) Mass is same, weight is less. C) Both mass and weight are less.
D) Both mass and weight are the same - ANSWER- B
You are standing in a moving bus, facing forward, and you suddenly fall forward. You can imply
from this that the bus's
A) Velocity decreased. B) Velocity increased. C) Speed remained the same, but it's turning right.
D) Speed remained the same, but it's turning left. - ANSWER- A
A constant net force acts on an object. Describe the motion of the object
A) Constant acceleration B) Constant speed C) Constant velocity D) Increasing acceleration -
ANSWER- A
If you blow up a balloon, and then release it, the balloon will fly away. This is an illustration of
A) Newton's first law. B) Newton's second law. C) Newton's third law. D) Galileo's law of inertia.
- ANSWER- C
,A net force F acts on a mass m and produces an acceleration a. What acceleration results if a net
force 2F acts on mass 4m?
A) a/2 B) 8a C) 4a D) 2a - ANSWER- A
Which has the greater momentum when moving?
A) a container ship B) a bullet C) either of these depending on speed - ANSWER- C
When you ride your scooter you have momentum. When you ride twice as fast you have
A) almost twice the momentum. B) twice the momentum. C) four times the momentum. D) none
of the above - ANSWER- B
If the mass of an object decreases to half, and its speed doubles, its momentum
a) remains unchanged. b) is doubled. c) is quadrupled. d) decreases. - ANSWER- A
The change in momentum of an object is equal to the
A) force acting on it. B) change in its velocity. C) object's mass times the force acting on it. D)
impulse that acts on it - ANSWER- D
Your friend says that impulse equals momentum. This statement isn't correct, and the missing word
is
a) work. b) acceleration. c) speed or velocity. d) change. - ANSWER- D
An iron ball and wooden ball of the same size are dropped simultaneously from a tower and reach
the ground at the same time. The iron ball has a greater
A) speed. B) acceleration. C) momentum. D) all of the above - ANSWER- C
, A 1-kg ball has twice as much speed as a 10-kg ball. Compared with the 1-kg ball, the 10-kg ball
has
a) the same momentum. b) 5 times as much momentum. c) 10 times as much momentum. d) 100
times as much momentum - ANSWER- B
When you simultaneously drop a light tennis ball and a heavy bowling ball, they hit the floor
A) at the same speed. B) with the same force. C) with the same momentum. D) all of the above -
ANSWER- A
What is the speed of a 4-kg ball with a momentum of 12 kg∙m/s?
A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/ - ANSWER- A
What is the speed of a 6-kg ball with a momentum of 72 kg∙m/s?
A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/s - ANSWER- C
What is the mass of a ball moving at 4 m/s with a momentum of 48 kg∙m/s?
A) 4 kg B) 12 kg C) 48 kg D) 192 kg - ANSWER- B
When a cannonball is shot from a cannon, the cannon recoils. Compared with the momentum given
to the cannonball, the momentum of the recoiling cannon is ideally
a) less. b) equal and opposite. c) greater. d) nonexistent. - ANSWER- B
To catch a fast-moving softball with your bare hand, you extend your hand forward just before the
catch and then let the ball ride backward with your hand. Doing this reduces the catching force
because the
YEAR EXAM REVISION QUESTIONS AND CORRECT
ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100%
GUARANTEED
The acceleration due to gravity is lower on the Moon than on Earth. Which of the following is true
about the mass and weight of an astronaut on the Moon's surface, compared to Earth?
A) Mass is less, weight is same. B) Mass is same, weight is less. C) Both mass and weight are less.
D) Both mass and weight are the same - ANSWER- B
You are standing in a moving bus, facing forward, and you suddenly fall forward. You can imply
from this that the bus's
A) Velocity decreased. B) Velocity increased. C) Speed remained the same, but it's turning right.
D) Speed remained the same, but it's turning left. - ANSWER- A
A constant net force acts on an object. Describe the motion of the object
A) Constant acceleration B) Constant speed C) Constant velocity D) Increasing acceleration -
ANSWER- A
If you blow up a balloon, and then release it, the balloon will fly away. This is an illustration of
A) Newton's first law. B) Newton's second law. C) Newton's third law. D) Galileo's law of inertia.
- ANSWER- C
,A net force F acts on a mass m and produces an acceleration a. What acceleration results if a net
force 2F acts on mass 4m?
A) a/2 B) 8a C) 4a D) 2a - ANSWER- A
Which has the greater momentum when moving?
A) a container ship B) a bullet C) either of these depending on speed - ANSWER- C
When you ride your scooter you have momentum. When you ride twice as fast you have
A) almost twice the momentum. B) twice the momentum. C) four times the momentum. D) none
of the above - ANSWER- B
If the mass of an object decreases to half, and its speed doubles, its momentum
a) remains unchanged. b) is doubled. c) is quadrupled. d) decreases. - ANSWER- A
The change in momentum of an object is equal to the
A) force acting on it. B) change in its velocity. C) object's mass times the force acting on it. D)
impulse that acts on it - ANSWER- D
Your friend says that impulse equals momentum. This statement isn't correct, and the missing word
is
a) work. b) acceleration. c) speed or velocity. d) change. - ANSWER- D
An iron ball and wooden ball of the same size are dropped simultaneously from a tower and reach
the ground at the same time. The iron ball has a greater
A) speed. B) acceleration. C) momentum. D) all of the above - ANSWER- C
, A 1-kg ball has twice as much speed as a 10-kg ball. Compared with the 1-kg ball, the 10-kg ball
has
a) the same momentum. b) 5 times as much momentum. c) 10 times as much momentum. d) 100
times as much momentum - ANSWER- B
When you simultaneously drop a light tennis ball and a heavy bowling ball, they hit the floor
A) at the same speed. B) with the same force. C) with the same momentum. D) all of the above -
ANSWER- A
What is the speed of a 4-kg ball with a momentum of 12 kg∙m/s?
A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/ - ANSWER- A
What is the speed of a 6-kg ball with a momentum of 72 kg∙m/s?
A) 3 m/s B) 4 m/s C) 12 m/s D) 48 m/s - ANSWER- C
What is the mass of a ball moving at 4 m/s with a momentum of 48 kg∙m/s?
A) 4 kg B) 12 kg C) 48 kg D) 192 kg - ANSWER- B
When a cannonball is shot from a cannon, the cannon recoils. Compared with the momentum given
to the cannonball, the momentum of the recoiling cannon is ideally
a) less. b) equal and opposite. c) greater. d) nonexistent. - ANSWER- B
To catch a fast-moving softball with your bare hand, you extend your hand forward just before the
catch and then let the ball ride backward with your hand. Doing this reduces the catching force
because the
