Newton's laws of motion
Who made Newton's Laws of motion?
Isaac Newton
When 2 forces are not equal what kind of forces is it ?
Unbalanced
Which is a change in velocity?
Acceleration
A balanced force is
When two objects act on each other and stay in the same spot
What is speed in a given direction?
Velocity
How fast something is moving is its ?
Speed
Which best describes the effect of force on the motion of an object?
Force causes the object to change speed or direction.
What is the average velocity of a car that moved 40 km East and 80 km West in 2 hours?
20 km/h
Forces that have a net force of zero ( the object is still).
Balanced forces
You would NOT use _____ to find the acceleration of an object.
Weight
A bowling ball rolls 33 m with an average speed of 2.5 m/s.
How many seconds did the ball roll?
13.2
If car A is at 40 km/h and car B is at 10 km/h in the opposite direction, what is the velocity of the car A relative to the car B?
50 km/h
A car travels from point A to B in 3 hours and returns back to point A in 5 hours. Points A and B are 150 miles apart along a straight highway. Which of the following statements most accurately describes the motion of the car?
The average speed is 37.5 miles per hour.