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Forces
Motion
Gravity
Vocabulary
Vocabulary
100
The acceleration of an object depends on two things; the size of the force used on it as well as __________?
What is mass?
100
What is the formula for calculating speed?
What is speed= distance/time?
100
What is weight the measurement of?
What is gravity?
100
The location of an object.
What is position?
100
Any change in the speed or direction of an object's motion.
What is acceleration?
200
What two factors determine an object’s momentum?
What are mass and velocity?
200
What two things do you have to measure in order to find an object’s speed?
What is distance and time?
200
Which factor would increase the gravitational attraction between two object?
What is more mass?
200
The force of attraction between Earth and other objects.
What is gravity?
200
A pull or push of any kind.
What is force?
300
What unit is used to measure forces?
What is newtons?
300
A person riding a snowmobile down a slope moves in relation to the trees. What term BEST describes the trees?
What is frame of reference?
300
A force that acts between any two objects and pulls them together.
What is gravitation?
300
The measure of an object's change in position during a unit of time.
What is speed?
300
A change of position of an object.
What is motion?
400
A constant force of 5 N is applied to an object resting on a flat surface, causing it to accelerate to the right. A force of 10 N is then applied in the opposite direction. In which direction does the object move now?
What is the left?
400
If Nick ran 10 kilometers in 2 hours, what is his distance? Speed?
10 kilometers is his distance. 5 kilometers per hour is his speed
400
If a penny and a bowling ball were dropped off the edge of a building, which would hit first?
What is at the same time?
400
The measure of the speed and direction of motion of an object.
What is velocity?
400
The property of matter that keeps and object at rest or keeps it moving in a straight line.
What is inertia?
500
A polar bear walks toward the North Pole. It walks 15 kilometers in 1 hour. What is its velocity?
What is 15 km/hour, north?
500
A car is moving in a straight line at a constant 40 km/hr. What about the car changes?
What is it's position?
500
Suppose you held a toy car at the top of a ramp and let it go. You are careful not to push the car. Why does the car roll down the ramp? What other force affects the car's motion?
What is because gravity pulls it down the ramp? Friction between the wheels and the ramp's surface affect the motion.
500
A measure of the gravitational force acting on an object.
What is weight?
500
A force that resists motion between objects that are touching.
What is friction?