Force and Motion

When you look out your window and see a skateboarder in front of your house, and two minutes later you look up and see her several houses away, you can use this information to describe her ____.

• speed

• velocity

• change in position

• acceleration

Tags

CCSS.HSN.VM.A.1

CCSS.HSN.VM.A.3

It takes 1.0 h to drive 20 km through a city during rush hour. Your ____ speed is 20 km/h.

• constant

• instantaneous

• average

• accelerating

Tags

CCSS.6.RP.A.2

CCSS.6.RP.A.3

If an object starts to accelerate, ____.

• a balanced force is acting on it

• gravity is acting on it

• velocity is acting on it

• an unbalanced force is acting on it

When forces are balanced, the total force ____.

• is greater than the sum of the forces

• is zero

• is negative

• is equal to the largest force

A soccer ball takes 20 s to roll 10 m. What is the average speed of the ball?

• 200 m/s

• 2 m/s

• 5 m/s

• 0.5 m/s

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

When an object is at rest, what is its speed?

• 3 m/s

• 2 m/s

• 1 m/s

• 0 m/s

Tags

CCSS.HSN.Q.A.1

A force is which one of these?

• a push only

• a pull only

• a push or a pull

• neither a push or a pull

Force is measured in which units?

• kilograms

• newtons

• m/s²

• degrees

Tags

CCSS.HSN.Q.A.1