Physics semester 1 final review

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

At 60 seconds, how far had this object traveled? 

• 0 m
• 10 m
• 20 m
• 40 m

In each of the following cases, determine which car has the greatest acceleration.

• starts from 0 m/s to 20 m/s in 4 seconds.
• speed up from 20m/s to 40m/s in 3 seconds
• slow down from 50m/s to stop in 2 seconds
• starts from 0 m/s to 20m/s in 5 seconds

How long would it take a car, starting from rest and accelerating uniformly in a straight line at 5 m/s², to cover a distance of 200m

• 9.0s

• 10.5s

• 12.0s

• 15.5s

What is the average velocity of the object between 0 and 10 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

Which graph(s) represents a constant velocity?

• a and c

• b and c

• c

• a and b

When an unbalanced force acts on an object, the force ______________________.

• changes the motion of the object

• is cancelled by another force

• does not change the motion of an object

• is equal to the weight of the object

Gravity is increased with...

• greater mass & shorter distance
• greater mass & farther distance
• lower mass & shorter distance
• lower mass & farther distance

The type of friction that prevents an object from moving is called _______ friction.

• rolling

• fluid

• kinetic

• static

How would the absence of friction affect the motion of a marble on a long, straight path?

• The marble's speed would decrease.

• The marble's speed would remain constant.

• The marble's speed would increase.

• The marble would stop immediately.