Physics ACP

Two objects with masses A m and B m are separated by a distance, d, and exert a force, F, on each other. What new force will exist between these objects if d is doubled as shown in the diagram?

• F/2

• F/4

• 2F

• 4F

Tags

NGSS.HS-PS2-4

If the mass of a balloon is 300 kg and the lift force provided by the atmosphere is 3300 N, what is the net force on the balloon?

• Upward, 360 N

• Downward, 300 N

• Toward the north, 300 N

• Toward the east, 360 N

Tags

NGSS.HS-PS2-1

A force of 30.0 N was used to push an object weighing 25 kg along a flat frictionless horizontal surface. What is the magnitude of the acceleration achieved by the object?

• 0.8 m/s²

• 1.2 m/s²

• 5.5 m/s²

• 8.0 m/s²

Tags

NGSS.HS-PS2-1

Which segment from the graph best describes the motion of an object in the free-body diagram?

• A

• B

• C

Tags

NGSS.HS-PS2-1

If it is known that an unbalanced force is acting on an object, then which of the following must be assumed regarding the object's motion?

• The object is at rest.
• ]The object is moving with a constant velocity.
• The object is accelerating.
• The object is at equilibrium.

Tags

NGSS.HS-PS2-1

Find the acceleration of the object.

• 0.5 m/s
• 2 m/s
• 12 m/s
• 144 m/s

Tags

NGSS.HS-PS2-1

At the moment a 85 kg skydiver pulls his parachute, he experiences 900 N upward force due to air resistance. Find the net force.

• 67 N
• 85 N
• 815 N
• 833 N

Tags

NGSS.HS-PS2-1

Match the motionless box on an incline with its correct free-body diagram

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A box with mass of 100 kilograms hangs from a rope. What is the tension in the rope?

• 100 N

• 10.2 N

• 980 N

• Need more information

Tags

NGSS.HS-PS2-1

Name the missing force...

• Frictional force
• Weight force
• Thrust
• Normal force

Tags

NGSS.HS-PS2-1