Match the Terms with Definitions

Analyze the diagram and determine how many forces are acting on the system.

• There is 1 force.

• There are 2 forces.

• There are 3 forces.

• There are 4 forces.

Tags

NGSS.HS-PS2-1

A system is at rest. The mass of each object is shown. Neglecting the mass of the strings, how many forces are acting on the 9 kg block?

• There is 1 force.

• There are 2 forces.

• There are 3 forces.

• There are 4 forces.

Tags

NGSS.HS-PS2-1

A 65 kg teacher (including the parachute) is skydiving. As the parachute opens, the system experiences 1400 N air resistance (drag). The force of gravity on the parachute/teacher system is ____________ down. The net force is ____________.

• 637 N, 763 N up

• 650 N, 750 N up

• 700 N, 800 N up

• 600 N, 800 N down

• 637 N, 763 N down

Tags

NGSS.HS-PS2-1

A student is riding her bike on the road with a combined mass of 80 kg bicyclist. She is trying to determine how much force is needed to start her bike moving. She knows that the coefficient of static friction between the road and the tires is 0.54 and the coefficient of kinetic friction is 0.35. She also assumes the bicyclist will experience a 30N drag. To determine the force needed to pedal and keep her bike moving she will need to use the ​ (a)   combined with the ​ (b)   to determine the friction force. Her applied force must be (c)   than the frictional forces.

• Coefficient of kinetic friction
• Drag Force
• Less than
• Greater than
• Coefficient of static friction
• Normal Force

Tags

NGSS.HS-PS2-1

A 65kg bicyclist (including the bicycle), initially at rest, pedals to the right, generating 200N of force for 6s. During this time, they experience 40N drag. Neglect any additional friction impeding their motion. Their net force on the bicycle is _______________.

• 160 N

• 140 N

• 180 N

• 200 N

Tags

NGSS.HS-PS2-1

A 4.7 kg cart is rolling down a ramp. Neglecting any friction and drag from impending motion, what is the magnitude of the normal force acting on the cart?

• 45.1 N

• 9.58 N

• 46.1 N

• 0.98 N

Tags

NGSS.HS-PS2-1

Which forces are not acting on the pendulum swinging in a moving car?

• Friction

• Gravity

• Air resistance

• Magnetic force

Tags

NGSS.MS-PS2-4

Which force is acting on the swinging pendulum at an angle of 18°?

• Normal Force

• Tension Force

• Gravitational Force

• All of the forces mentioned are acting on the swinging pendulum

Tags

NGSS.HS-PS2-1

A cannonball is fired into frictionless space. The amount of force needed to keep it going equals:

• Zero, since no force is necessary to keep it moving

• Twice the force with which it was fired

• The same amount of force with which it was fired

• One quarter the force with which it was fired

Tags

NGSS.HS-PS2-1

One object has twice as much mass as a second object. The first object has twice as much:

• Velocity

• acceleration

• Inertia

• Force

Tags

NGSS.HS-PS2-1