Yr 10 Science Newton's Second Law of Motion

(a)   = mass x acceleration

I the mass of an object is 10 kg. And the acceleration is 10 m/s², what is the force on the object?

• 1000 N

• 20 N

• 10 N

• 100 N

A (a)   is required to change the motion of an object

Is friction a force?

• Yes

• No

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

• True
• False

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.

• The one with a mass of .52 kg will have the greatest acceleration.

• They will both accelerate at the same rate.

According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

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

According to Newton’s second law of motion, if force remains the same but mass increases, then acceleration will

• increase

• decreases

• remain constant