Newton's First Law Review

1. Newton's First law is also known as the law of...

Movement

Complication

Inertia

Inability

Equal and oopposite forces

Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity, unless acted upon by an external force. This concept is known as inertia, which refers to the tendency of an object to resist any change in its state of motion. Therefore, the correct answer is inertia.

Explanation

Newton's First Law states that an object at rest will remain at rest, and an object in motion will continue in motion with a constant velocity, unless acted upon by an external force. This concept is known as inertia, which refers to the tendency of an object to resist any change in its state of motion. Therefore, the correct answer is inertia.

2. Johnny pushes with a force of 50 N to the left, Jill pushes on the car with a force of 75 N to the right. Is the object in equilibrium?

Yes

No

Maybe

If the net force is not zero, The object is not in equilibrium

Explanation

If the net force is not zero, The object is not in equilibrium

3. If an object is in equilibrium its acceleration is _________ and its Net force is _____

Non-zero, non-zero

Zero,non-zero

Zero, zero

Non-zero,zero

If the net force = 0 N, then the objects acceleration = 0 N. No net force = no acceleration

Explanation

If the net force = 0 N, then the objects acceleration = 0 N. No net force = no acceleration

4. Johnny pushes with a force of 50 N to the left, Jill pushes on the car with a force of 75 N to the right. What is the net force acting on the object?

125 N

100 N

50 N

25 N

0 N

When fores are going in opposite directions, you subtract ( or add a negative)- FNET= 75N - 50 N

Explanation

When fores are going in opposite directions, you subtract ( or add a negative)- FNET= 75N - 50 N

5. An object in motion will _____________________ if the Net force acting on it is____

Stay in motion, 0 N

Accelerate, 0 N

Stay in motion,greater than 0 N

Newton's first law is defined as an object in motion will stay in motion if the net fore acting on it is 0N

Explanation

Newton's first law is defined as an object in motion will stay in motion if the net fore acting on it is 0N

6. An object is moving at a constant velocity. If the Car requires 1000 N of force to propel it forward, What is the magnitue of the frictional force acting on the car?

0 N

500 N

1000 N

1500N

1000 N

Since it is moving at a constant spee, the Net force on it )n, Which means it must be balanced by a force that is equal and opposite to the applied force

Explanation

Since it is moving at a constant spee, the Net force on it )n, Which means it must be balanced by a force that is equal and opposite to the applied force