Topic 4 Lesson 1 and 2 Review

Which of the following is not an example of acceleration?

• A ball rolls with constant speed

• A car goes around a gentle curve

• A dog starts running to chase a cat

• A cat runs up a tree and stops at the top.

An object is accelerating when it

• All the choices are correct.

• speeds up.

• slows down.

• changes direction.

Tags

NGSS.MS-PS2-2

The rate at which velocity changes is

• acceleration.

• speed.

• average speed.

• newton.

An object is moving 25 m/s northeast. This describes the object's

• velocity.

• speed.

• acceleration.

• net force.

What is the difference between speed and velocity?

• Velocity is speed in a specific direction.

• Speed is velocity in a specific direction.

• Velocity is the rate speed changes.

• Speed is the rate velocity changes.

On a distance time graph, a constant slope represents

• motion at a constant speed.

• the object speeding up.

• the object slowing down.

• the object is not in motion.

The slope of a distance time graph tells you

• speed

• velocity

• acceleration

• net force

Tags

NGSS.MS-PS3-1

The total distance traveled divided by the total time to travel the distance is

• average speed

• instantaneous speed

• velocity

• the need for speed

The speed at a particular instant in time is called

• instantaneous speed

• average speed.

• acceleration.

• velocity.

Tags

NGSS.MS-PS3-1

To calculate the speed of an object,

• divide the distance it travels by the amount of time it takes to travel that distance

• divide the time it takees to travel a distance by the distance traveled.

• divide the velocity by distance.

• multiply time it takes to travel a distance by the distance traveled

Tags

NGSS.MS-PS3-1