U8 Forces & Motion Summative Review

Use the graph below to answer the question. Which graph represents a car with postive acceleration?

• Graph W
• Graph X
• Graph Y
• Graph Z

Use the graphs below to answer the question. Which graph represents a car that has stopped (standing still)?

• Graph W
• Graph X
• Graph Y
• Graph Z

Choose all correct answers. You are in-line skating, as you skate up a hill you slow down. This is an example of which?

• negative acceleration
• mechanical advatange
• lateral motion
• deceleration

An object that is speeding up, slowing down, or traveling around a corner is __.

• accelerating
• sloping
• speeding
• winding

This includes speed and direction. The speed of an object in a certain direction.

• inertia
• slope
• speed
• velocity

From the first pictiure to the second picture, in which direction is the ballon traveling?

• going down
• going up
• staying exactly the same
• no way to tell

Each arrow on the figure represents the distance in one second. What type of acceleration is shown?

• Negative acceleration
• Positive acceleration
• Fluctuating acceleration
• No acceleration

The moving blades of a windmill are an example of

• negative acceleration.
• deceleration.
• positive acceleration.
• centripetal acceleration.

A kangaroo hops 60 m to the east in 5 s. What is its velocity? (velocity = distance ÷ time)

• 12 m/s east
• 300 m/s east
• 0.0833 m/s east
• 1.2 m/s east

A plane with a velocity of 8,000 m/s NE, then 10,000 m/s NE 40 second later travels over. Calculate acceleration

• 2,000 m/s2 northeast
• 50 m/s northeast
• 50 m/s2 northeast
• 2,000 m/s northeast