Net Force & Speed

Calculate the Net force:

• 125N

• 50N

• 200N

• 0N

In which direction will the ball move?

• To the left

• To the right

• Into the face of the player in red

• The ball will not move

Which force is pulling down the weight of the airplane?

• Air resistance

• Friction

• Gravity

• Normal force

For the balloon to rise up, the lift force is stronger than the force of ________.

• Fire

• Magic

• Yoda

• Gravity

Calculate the net force:

• 700N

• 800N

• 900N

• 0N

You run 20km in 2 hours.

What is your average speed?

• 40km/h

• 20km/h

• 10km/h

• 18km/h

When two forces are equally strong, the net force will be 0N. We call this _____ force.

• unbalanced

• balanced

• elephant

• newton

A lion runs 20km in 15 minutes. What is the average speed of the lion?

• 5km/min

• 2.7km/min

• 1.3km/min

• 0.5km/min

Which picture shows instantaneous speed?

• 
• 
• 
• 

You walk 2km to a cafe and then 3km to your friends house. It took you 1.5 hours. What was your average speed?

• 6.5km/h

• 2km/h

• 3.3km/h

• 5km/h