1. What term refers to the tendency of an object to resist any change in its state of motion? *
1 point
Resistance
Inertia
Force
Acceleration
2. What Newton’s law states that the acceleration of an object is directly proportional to the magnitude of the net force acting on it and inversely proportional to its mass? *
1 point
First Law of Motion
Second Law of Motion
Third Law of Motion
Law of Universal Gravitation
3. According to Newton’s First Law of Motion, what happens to a moving object that is not acted upon on by an unbalanced force? *
1 point
It will change its momentum
It will accelerate
It will eventually come to stop
It will remain in motion
4. What happens to the acceleration of an object if its mass is doubled, and the force remains constant? *
1 point
It will be reduced to ½.
It will increase by ½.
It will decrease by ¼
It will be doubled.
5. Two rocks, one is heavy and the other is light, were dropped from the same height at the same time. Which statement DOES NOT describe the rocks? *
1 point
The rocks experience the action of gravity.
The rocks will reach the ground at the same time.
The rocks will increase their velocities by 9.8 m/s every 2 seconds.
The rocks will accelerate at the same time.
For Nos. 6-8, refer the situation below. “A stone is tied to a string and whirled horizontally above one’s head”. 6. Which of these statements DOES NOT describe the stone? *
1 point
It is said to be in uniform circular motion
It is acted upon by a net force
It is accelerating
It is not accelerating
7. What will happen if you cut the string while in motion? *
1 point
It will move upward
It will still move in a circular path
It will continue to move straight and fly of tangential to the circular path.
It will experience balanced forces
8. What Newton’s law/s is/are applied on the motion of the stone? I. Law of Inertia II. Law of Acceleration III. Law of Interaction *
1 point
I, II and III
II only
I only
I and II
9. A book is placed on a dashboard of a car that stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Which of these statements explains the behaviour of the book? *
1 point
Air resistance made the book move forward.
There was grease on the dashboard.
A supernatural force took over
The book has inertia
10. If the same amount of force is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, how will you describe the motion of the two balls? *
1 point
The 0.52 kg ball will have the greater acceleration.
Both balls will have the same acceleration.
The 0.78 kg ball will have the greater acceleration.
Both balls will not accelerate.
11. What will happen to a stationary object if the net for acting on it is zero? *
1 point
It will remain at rest.
It will begin moving backwards
It will decelerate at steady rate of speed.
It will accelerate in the direction of the strongest force.
12. What differentiates balanced forces from action-reaction forces? *
1 point
The forces are equal in size.
The forces act on different objects.
The forces act upon same object.
The forces opposite on each other in terms of direction.
13. An __________________ force must act on an object for it to CHANGE it's motion *
1 point
Gravitational
Balanced
Electrical
Unbalanced
14. What is the net force in this picture? *
1 point
Captionless Image
950 Newtons to the left
50 Newtons to the left
50 Newtons to the right
950 Newtons to the right
15. What will cause an object to move? *
1 point
Frictional forces
Applied forces
Balanced forces
Unbalanced forces
16. Which of these examples demonstrate balance forces *
1 point
A car sliding on ice.
A roller coaster going down the first drop.
A car hitting a telephone pole.
A tug-of-war game in which no one wins.
17. Which of these force diagrams demonstrates an object in motion? *
1 point
D
C
A
B
18. When the net force of an object is equal to zero, then the forces are said to be _______________. *
1 point
Gravitational
Unbalance force
Balance force
Air-resistance force
19. With unbalanced forces, the object will move in the direction of the _______ force. *
1 point
equal
cannot be determined
smaller
larger
20. 5. Jonny and Patty are pushing against a basketball. Both of them push against the ball on opposite sides with a force of 20 N to keep the ball still. What is the net force? *
1 point
40 N
0 N
24 N
400 N
1 point
Resistance
Inertia
Force
Acceleration
2. What Newton’s law states that the acceleration of an object is directly proportional to the magnitude of the net force acting on it and inversely proportional to its mass? *
1 point
First Law of Motion
Second Law of Motion
Third Law of Motion
Law of Universal Gravitation
3. According to Newton’s First Law of Motion, what happens to a moving object that is not acted upon on by an unbalanced force? *
1 point
It will change its momentum
It will accelerate
It will eventually come to stop
It will remain in motion
4. What happens to the acceleration of an object if its mass is doubled, and the force remains constant? *
1 point
It will be reduced to ½.
It will increase by ½.
It will decrease by ¼
It will be doubled.
5. Two rocks, one is heavy and the other is light, were dropped from the same height at the same time. Which statement DOES NOT describe the rocks? *
1 point
The rocks experience the action of gravity.
The rocks will reach the ground at the same time.
The rocks will increase their velocities by 9.8 m/s every 2 seconds.
The rocks will accelerate at the same time.
For Nos. 6-8, refer the situation below. “A stone is tied to a string and whirled horizontally above one’s head”. 6. Which of these statements DOES NOT describe the stone? *
1 point
It is said to be in uniform circular motion
It is acted upon by a net force
It is accelerating
It is not accelerating
7. What will happen if you cut the string while in motion? *
1 point
It will move upward
It will still move in a circular path
It will continue to move straight and fly of tangential to the circular path.
It will experience balanced forces
8. What Newton’s law/s is/are applied on the motion of the stone? I. Law of Inertia II. Law of Acceleration III. Law of Interaction *
1 point
I, II and III
II only
I only
I and II
9. A book is placed on a dashboard of a car that stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Which of these statements explains the behaviour of the book? *
1 point
Air resistance made the book move forward.
There was grease on the dashboard.
A supernatural force took over
The book has inertia
10. If the same amount of force is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, how will you describe the motion of the two balls? *
1 point
The 0.52 kg ball will have the greater acceleration.
Both balls will have the same acceleration.
The 0.78 kg ball will have the greater acceleration.
Both balls will not accelerate.
11. What will happen to a stationary object if the net for acting on it is zero? *
1 point
It will remain at rest.
It will begin moving backwards
It will decelerate at steady rate of speed.
It will accelerate in the direction of the strongest force.
12. What differentiates balanced forces from action-reaction forces? *
1 point
The forces are equal in size.
The forces act on different objects.
The forces act upon same object.
The forces opposite on each other in terms of direction.
13. An __________________ force must act on an object for it to CHANGE it's motion *
1 point
Gravitational
Balanced
Electrical
Unbalanced
14. What is the net force in this picture? *
1 point
Captionless Image
950 Newtons to the left
50 Newtons to the left
50 Newtons to the right
950 Newtons to the right
15. What will cause an object to move? *
1 point
Frictional forces
Applied forces
Balanced forces
Unbalanced forces
16. Which of these examples demonstrate balance forces *
1 point
A car sliding on ice.
A roller coaster going down the first drop.
A car hitting a telephone pole.
A tug-of-war game in which no one wins.
17. Which of these force diagrams demonstrates an object in motion? *
1 point
D
C
A
B
18. When the net force of an object is equal to zero, then the forces are said to be _______________. *
1 point
Gravitational
Unbalance force
Balance force
Air-resistance force
19. With unbalanced forces, the object will move in the direction of the _______ force. *
1 point
equal
cannot be determined
smaller
larger
20. 5. Jonny and Patty are pushing against a basketball. Both of them push against the ball on opposite sides with a force of 20 N to keep the ball still. What is the net force? *
1 point
40 N
0 N
24 N
400 N
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Answer:
1.Inertia is the tendency of an object to resist changes in its state of motion. ... Thus, inertia could be redefined as follows: Inertia: tendency of an object to resist changes in its velocity. An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity.
2.The BIG Equation
Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Explanation:
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