Need for Speed

Velocity is both ____ and _____. 

• speed , direction 

• direction, mass

• volume, density 

• direction, magnitude 

Which of these is an example of acceleration?

• A car coasts along at 40 km/hr

• A car is parked on the side of the road

• A speeding car brakes to a stop

• A car speeds along at 100 km/hr

Acceleration is a measure related to motion. What is acceleration?

• the rate at which velocity changes

• a measure of the speed of something

• a unit of distance in the metric system

• the energy associated with pushing or pulling

Tags

NGSS.MS-PS2-2

Cars, bicycles, and people are all objects that can be in motion. What is motion?

• a device used for measuring mass

• a measure of the force of gravity on an object

• a natural force that is produced by a magnetic field

• a change in the position of something over time in comparison to a reference point

Force is-

• Any Push or Pull to make an object Move,  Stop, Change Speed, or Direction.

• Something Created By Friction

• Kinetic energy getting ready to be used.

Tags

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Why is it harder for the boy in Image B to get down the hill?

• Motion

• Friction

• Work

• Displacement

Which surface would have the least amount of friction?

• A road

• A carpet

• An ice skating ring

• Astro turff

What is the primary factor that affects the speed of a moving object?

• Mass of the object

• Force applied to the object

• Color of the object

• Shape of the object

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Which of the following is an example of increasing speed?

• A car slowing down at a traffic light

• A cyclist pedaling harder to climb a hill

• A train coming to a stop at a station

• A runner maintaining a steady pace

Tags

NGSS.MS-PS3-1

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In a speed-time graph, what does a horizontal line represent?

• Constant speed

• Increasing speed

• Decreasing speed

• Variable speed

Tags

NGSS.MS-PS3-1