Force and Motion

Acceleration is defined as the CHANGE in 

• time of motion to another place. 
• velocity 
• distance 
• speed

Changes in our speed, direction  or both are called _________.

• gravity
• changes
• acceleration
• deceleration

When are you undergoing an acceleration in a car? 

• speed up
• slow down
• make turns
• All of the above 

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

A runner races in the 100 meter dash (distance).  It takes her 10 seconds to finish (time).  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

According to the graph how far does the person travel in the first 5 seconds?

• 2 m
• 10 m
• 0 m
• 5 m

What is the person doing from 5 seconds to 10 seconds?

• Walking 
• Running
• Standing Still 
• Walking Fast

If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object?

• 150 Newtons
• 15 Newtons
• 150 kilograms
• 100 kilograms

What law of motion does this picture represent?

• Newtons 3rd law
• Newtons 4th law
• Newtons 1st law
• Newtons 2nd law 

What law of motion does this picture represent?

• Newtons 1st law
• law of gravity 
• Newtons 4th law 
• Newtons 2nd law