Force and Motion

total length of path covered by object without specifying its direction called

• displacement

• distance

• speed

• velocity

Look at the picture above. A boy moves from point A, B, C, D, and going back to A. What is the displacement of the boy?

• 16 m

• 6 m

• 10 m

• 0

Look at the picture.

You run from your house to a friend's house that is 3 miles away. You then walk home.

What is the distance and displacement of your entire trip?

• distance = 3 miles, displacement = 3 miles

• distance = 3 miles, displacement = 0

• distance = 6 miles, displacement = 0

• distance = 0, displacement = 0

You run from your house to a friend's house that is 200 meters away in 5 minutes. What was your speed (in m/s)?

• 40 m/s

• 0,33 m/s

• 0,67 m/s

• 0

Fill out the blank.

Motion can be described by distance, speed, displacement, and velocity, where ------and --------also include direction.

• speed, distance

• displacement, velocity

• distance, velocity

• displacement, speed

Displacement is distance combined with

• direction

• speed

• velocity

• magnitude

A roller coaster’s velocity at the top of a hill is 10 m/s. Two seconds later it reaches the bottom of the hill with a velocity of 26 m/s. What was the acceleration of the coaster?

• 18 m/s²

• 0

• 13 m/s²

• 8 m/s²

A car traveling at 15 m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. What is it’s deceleration?

• 1,5 m/s²

• 15 m/s²

• 0,15 m/s²

• 150 m/s²

These are example of forces, except....

• gravity

• friction

• velocity

• magnetism

What is the net force?

• 1800 N to left

• 200 N to left

• 200 N to right

• 1800 N to right