Forces and Acceleration

An object moves at a constant speed of 5 m/s. This means that the object:

• Increases its speed by 5 m/s every second

• Decreases its speed by 5 m/s every second

• Doesn’t move

• Has a positive acceleration

• Moves 5 meters every second

Starting from the origin, a person walks 8 km east during first day, and 5 km west the next day. What is the net displacement of the person from the initial point in two days?

• 6 km east

• 3 km east

• 10 km west

• 5 km west

• 11 km west

What is the distance that the object travels in the first 5 seconds?

• 4m

• 5m

• 9m

• 20m

• It is impossible to tell.

What is the acceleration during the first five seconds?

• 0 m/s^2

• 1m/s^2

• 4m/s^2

• 9 m/s^2

• 20 m/s^2

SI unit for distance

• miles

• centimeters

• meters

• inches

SI unit for time

• seconds

• minutes

• hours

• days

Formula for velocity

• v = d*t

• v = d/t

• v = m*t

• v = m/t

SI unit for mass

• kilograms

• grams

• pounds

• ounces

SI unit for force

• Joules

• Watts

• Newtons

• meters

Formula for force

• F = m*a

• F = m/a

• F = d*a

• F = d/a