Unit 2 Review - Linear & Projectile Motion

A car and a truck are driving down the road. They are moving at the same speed, but different velocities. How is this possible?

• The are driving in opposite directions.

• One is a car and the other is a truck.

• They are driving different speeds.

• It is not possible.

The speedometer on your car shows you the ________________________ of the car.

• instantaneous speed

• average speed

• average acceleration

• instantaneous acceleration

The rate of change of velocity is called ___________________.

• acceleration

• velocity

• speed

• free fall

A ________________ quantity measures both magnitude and direction.

• vector

• mass

• scalar

• speed

A ______________ quantity only measures the magnitude.

• scalar

• vector

• velocity

• force

You kick a ball with a speed of 5 m/s at an angle of 55º. If your friend kicks an identical ball with the same speed, which angle would they need to kick the ball in order to make it travel the same distance as your ball?

• 35º

• 45º

• 65º

• 60º

Which of the following angles will give you the best range for a projectile?

• 45º

• 55º

• 65º

• 90

A car is moving at a velocity of 105 m/s. It then increases its velocity to 135 m/s in a time of 1.2 seconds. What was the acceleration of the car?

• 25 m/s²

• -25 m/s²

• 112.5 m/s²

• 87.5 m/s²

A coconut falls from a tree and takes 0.68 seconds for it to hit the ground. What was the velocity of the coconut when it hit the ground?

• 6.8 m/s

• 14.7 m/s

• 2.3 m/s

• 0.68 m/s

Sally drops a ball off the side of a building. If it takes 1.8 seconds to hit the ground, how tall is the building?

• 16.2 m

• 18 m

• 0.18 m

• 22 m