Fast and the Curious Week 32: Science 8

What happens when unbalanced forces act on an object at rest?

• the object remains at rest
• the object begins moving in an unpredictable direction
• the object begins moving in the direction of the net force
• the object begins moving opposite to the direction of net force

Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction?

• Football A

• Football B

• They will have the same acceleration

• Mass has no effect on acceleration

Will it take more force to push an empty shopping cart or a shopping cart that is full?

• The empty shopping cart
• The full shopping cart
• They will take the same amount of force

An object with a mass of 6.0 kg accelerates 4.0 m/s² when an unknown force is applied to it. What is the amount of the force?

• 240 N
• 24 N
• 2.4 N
• 0.24 N

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

Ted is trying to move a fridge through his house, he gets stuck on a carpet and even though he is pushing the fridge, it is not moving. What force is acting against him?

• Gravity

• Air Resistance

• Mass

• Friction