Motion & Forces - Chapter 2
.
- 1.A push or a pull is called
- A.
Motion
- B.
Force
- C.
Acceleration
- D.
Velocity
- 2.James combines all the forces acting on a tennis ball. He is finding.....
- A.
Net force
- B.
Inertia force
- C.
Gravitational force
- D.
Frictional force
- 3.Janet is sliding a box across the floor. What does she need to know to calculate the force on the box?(F=ma)
- A.
Mass and inertia
- B.
Acceleration and friction
- C.
Mass and acceleration
- D.
Friction and gravity
- 4.Inertia is the resistance of an object to a change in its
- A.
Gravity
- B.
Motion
- C.
Mass
- D.
Balanced force
- 5.A soccer player kicks a ball that is at rest. What do you predict will happen?
- A.
The ball will not move
- B.
The ball will lose momentum
- C.
The ball will accelerate in the direction opposite the applied force
- D.
The ball will accelerate in the same direction as the applied force
- 6.According to Newton's second law of motion, force equals mass times ......
- A.
Velocity
- B.
Momentum
- C.
Acceleration
- D.
Mass
- 7.When you push on a door, the door pushes back with an equal and opposite force. These two forces are known as
- A.
Mass and velocity force pairs
- B.
Unbalanced force pairs
- C.
Mass and acceleration force pairs
- D.
Action/reaction force pairs
- 8.The momentum of an object is the product of its(p=mv)
- A.
Mass and acceleration
- B.
Mass and velocity
- C.
Force and mass
- D.
Net force and mass
- 9.A bowling ball rolls down the lane and hits some pins before rolling off the lane. What happens to the momentum of the ball as it hits the pins?
- A.
Some of the ball's momentum is transferred to the pins
- B.
All of the ball's momentum is transferred to the pins
- C.
None of the ball's momentum is transferred to the pins
- D.
The pins stop the ball from rolling farther
- 10.Conservation of momentum occurs only when there are........
- A.
No outside forces
- B.
Balanced and unbalanced force pairs
- C.
Gravity and friction
- D.
Mass and inertia
- 11.What is the unit of force?
- A.
Inch
- B.
Kilometer
- C.
Newton
- D.
Kilogram
- 12.What symbol is used for force?
- A.
N
- B.
Kg
- C.
F
- D.
Cm
- 13.
![What is one of the forces involved in pushing the cart? - ProProfs]( "What is one of the forces involved in pushing the cart?")
- A.
Gravitational force pushing up
- B.
Contact force in pushing
- C.
Inertia force
- D.
Energy force
- 14.What force is being applied to the cart of it is accelerating at 2.2 m/s2 and the cart's mass is 55 kg? The formula for calculating force is F=ma
- A.
100N
- B.
25N
- C.
1000N
- D.
121N
- 15.If you double the force on the cart, what happens to the acceleration?
- A.
It doubles as well
- B.
It gets twice as small
- C.
It triples
- D.
It get ten times bigger
- 16.What do the data show about momentum as the mass becomes larger? CarabcdefgMass of car (kg)1350140014501500155016001650Momentum (kg m/s)2970308031903300341035203630
- A.
Momentum decreases as mass becomes smaller
- B.
Momentum increases as mass becomes smaller
- C.
Momentum decreases as mass becomes larger
- D.
Momentum increases as mass becomes larger
- 17.Use the data in the table to determine the velocity of car A. The formula for calculating velocity is V=P/m (velocity = momentum/mass) carabcdefgmass of car (kg)1350140014501500155016001650momentum (kg m/s)2970308031903300341035203630
- A.
.45 m/s
- B.
2.2 m/s
- C.
50 m/s
- D.
1620 m/s
Questions: 12 | Attempts: 24866 | Last updated: Jul 28, 2020
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