Newton's Laws Examples
You push 30N on a wall, how much force is coming back?
30N: Every action has an opposite and equal reaction
What keeps the moon in Earth's orbit?
Gravitational pull
Acceleration depends on what 2 forces
Force and mass
What would happen if 2 people pulled with 15kg of force during tug-of-war?
Nothing
Which will require more force to push?
- A 50kg shopping cart
- A 100kg shopping cart
A 100kg shopping cart because F= M x A
- The more mass = more force to accelerate
What occurs because of the Sun's gravitational pull?
The planets orbiting around the sun
It takes you 10 minutes to run 1 mile, how long will it take you to run 5 miles?
50 minutes
Two unequal forces is called what?
Unbalanced force
If a car is driving in a straight line at a constant velocity, what will the car do?
Continue to drive at the same speed, unless something slows it down
What 2 factors determine gravitational force?
Distance and mass
You see a straight line on a time-distance graph, what does this mean?
The person stayed at a consistent speed
A 5 kg book is sitting on a table, how much force is the table exerting on the book?
5kg because of Newton's 3rd Law of Motion
The air pushed out the back of the balloon and push the balloon forward
A 5kg object is 10m away from a 20kg object, how can you increase the gravitational pull?
Decrease the distance
What is the fastest route between 2 points called?
Displacement
Does friction act in the same or opposite direction of an object?
Opposite
If a bowling ball weighs more than a basketball and a ping pong ball weighs less than a basketball, what is the ranking of fastest to slowest?
1. Ping pong ball
2. Basketball
3. Bowling ball
Why does the moon not pull the Earth like the sun does?
The mass of the moon is less than the sun
How do you find average speed?
Total distance divided by total time
What is the net force of an object if 50kg is being pushed to the right and 10kg is being pushed to the left?
40kg to the right