B 2.3 Impulse

Question 1

What is impulse? / Qu est ce que l impulsion ?

Answer 1

The product of force applied and the time it acts. / Le produit de la force appliquee et du temps pendant lequel elle agit.

Question 2

What is the formula for impulse? / Quelle est la formule de l impulsion ?

Answer 2

Impulse = Force × time (J = F × Δt). / Impulsion = Force × temps (J = F × Δt).

Question 3

What units are used for impulse? / Quelles sont les unites de l impulsion ?

Answer 3

N·s (Newton-seconds). / N·s (newton-secondes).

Question 4

How does impulse affect momentum? / Comment l impulsion affecte-t-elle l impulsion ?

Answer 4

Impulse changes the momentum of an object. / L impulsion change l impulsion d un objet.

Question 5

Give an example of impulse. / Donnez un exemple d impulsion.

Answer 5

Hitting a soccer ball with your foot. / Frapper un ballon de football avec le pied.

Question 6

Why is understanding impulse important? / Pourquoi comprendre l impulsion est-il important ?

Answer 6

To predict outcomes of collisions and impacts. / Pour predire les resultats des collisions et impacts.