What does the term 'net force' mean?

Net force is the total force acting on an object after all the forces are combined.

Inertia is the tendency of an object to resist changes in its state of motion.

What is the relationship between mass and weight?

Weight is the force exerted by gravity on an object, which depends on its mass and the acceleration due to gravity: $$W = mg$$ .

If you push a 1000 kg car with an acceleration of 0.5 m/s², how much force do you apply?

Using $$F = ma$$ , the force is $$F = 1000 kg \times 0.5 m/s^2 = 500 N$$ .

What is the effect of balanced forces on an object?

Balanced forces do not change the motion of an object; it remains at rest or continues to move at a constant velocity.

What happens to an object's motion when unbalanced forces act on it?

Unbalanced forces cause an object to accelerate, changing its velocity.

What is the significance of the acceleration due to gravity on Earth?

The acceleration due to gravity on Earth is approximately $$9.8 m/s^2$$ , which affects the weight of objects.

How does mass affect acceleration when a constant force is applied?

According to Newton's Second Law, as mass increases, acceleration decreases if the force remains constant.

newtons first and second law make-up Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

2.

FLASHCARD QUESTION

Front

What is Newton's Second Law of Motion?

Back

3.

FLASHCARD QUESTION

Front

What is the formula for calculating weight?

Back

4.

FLASHCARD QUESTION

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

5.

FLASHCARD QUESTION

Front

How do you calculate acceleration?

Back

6.

FLASHCARD QUESTION

Front

If a 60 kg person is on Earth, what is their weight?

Back

7.

FLASHCARD QUESTION

Front

What is the weight of a 0.456 kg object on Earth?

Back

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