Acceleration by Force

The unit of force is

• m/s
• m/s^2
• newton
• kg

_____ = mass x acceleration

• Gravity
• Strength
• Force
• Weight

A _____________________ must be exerted on an object at rest to cause it to move.

• weight
• inertia
• force
• gravity

Tags

NGSS.MS-PS2-2

A 50 kg skater pushed by a friend accelerates 5 m/sec².  How much force did the friend apply?

• 45 N
• 15 N 
• 10 N
• 250 N

Tags

NGSS.MS-PS2-2

This triangle is used to determine speed. 

• True
• False

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is a force?

• A force is a push or pull.
• A force is anything that acting on another object.
• A force can be balanced or unbalanced.
• all of the above

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

In the equation F = m x a, what do F, m, and a stand for?

• Frequency, mass, acceleration
• Force, meters, acceleration
• Force, mass, acceleration
• Force, miles, acceleration

Tags

NGSS.MS-PS2-2

My dog Trevor, who is 9.09 kg, jumps for a treat, with an acceleration of 0.7 m/s². What is the force that his legs exert?

• 6.36 N
• 12.9 N
• 0.077 N

Tags

NGSS.MS-PS2-2

Trevor shakes his favorite chew toy with a force of 43 N at an acceleration of 0.18 m/s². What is its mass?

• 7.74 kg!
• 239 kg!
• .004 kg!
• 43.18 kg!

Tags

NGSS.MS-PS2-2