Final science exam

Réussis tes devoirs et examens dès maintenant avec Quizwiz!

1) keep moving until acted upon 2) need more force to get something moving 3) opposite reactions

Describe and draw a picture of Newton's 3 laws of motion

3000 N

How much force is needed to accelerate a 1000 kg car at a rate of 3 m/s/s

700 miles/13hrs = 53.8 mph

If a bus travels 700 miles in 13 hours, what is the average speed? Make sure to show your work.

4 m/s squared

calculate the acceleration of a helicopter that has a mass of 4500 kg and a net force of 18000 N

KE = 1/2 (300g x 3 m/s x 3 m/s) =1350 N

calculate the kinetic energy of a 300g book falling at 3 m/s

GPE = 25g x 9.8 m/s (2) x 6m = 1470 N

calculate the potential energy of a 25 g ball that is sitting on top of a 6m shelf. Be sure to show your work.

833 kg

find the mass of a football player who has 1250 N of force and has an acceleration of 1.5 m/s/s

32 cm/10 sec = 3.2 cm/sec

if a toy car travels 32 cm in 10 seconds, what is the average speed? Make sure to show your work.

P= mv

what is the formula for calculating momentum?

36,400 kg x m/s

what is the momentum of a car with a mass of 1300 kg traveling at a speed of 28 m/s/s

speed = distance/time

What is the formula for calculating speed

KE = 1/2mv(2)

What is the formula for kinetic energy

Ensembles d'études connexes