Test - Forces Flashcards
1
Q
- What is the net force on a block with 3N to the right and 5N to the left
A
2N to the right
NB pg 23
2
Q
- A Group of students were playing tug-of-war the students on both sides of the rope are pulling with equal force so that the rope is not moving this in example of what forces
A
Acceleration
NB pg 23
3
Q
- An object that is falling freely has a constant what
A
Acceleration
NB pg 23
4
Q
- What is the weight of a box with 300N to the right and a mass of 25kg
A
245N
NB pg 23
5
Q
- A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire what is most likely the cause of this
A
The escaping water exerts an equal and opposite force on the hose
NB pg 23
6
Q
- A man weighing 800 N is standing on a chair in order to support the man what force is the chair exerting
A
800 N and up
NB pg 23
7
Q
- A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be
A
Larger
NB pg 23
8
Q
- If a card was on top of the cup and quickly pulled off the cup with a coin on top what property would explain why the coin falls into the cup
A
Inertia
NB pg 23
9
Q
- How does a swimmer move through the water
A
The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer
NB pg 23
10
Q
- A net force acting on an object causes the object to accelerate in the direction of the net force
A
Newton’s 2nd law
NB pg 23
11
Q
- The attraction any 2 objects have on one another
A
Gravity
NB pg 23
12
Q
- Push or pull one body exerts on another
A
Forces
NB pg 23
