Which of the following are ways to measure movement?
Direction, distance, speed
Distance, time, speed
Prediction, time, speed
Direction, time, prediction
A force that happens when an object rubs another object is called ____________
Magnetism
Friction
Gravity
A child pushes a box around the room. (This is an example of ______________.)
Unbalanced forces
Chemical energy
Balanced forces
Potential energy
Cooper designs and builds a toy car and is about to test the speed of the car bay pushing it down a ramp. What tools should he use to measure the speed of the toy car?
A scale and a stopwatch
A stopwatch and a ruler
A measuring cup and a scale
A ruler and a scale
Balanced forces cancel each other out when acting on an object.
False
True
Hitting a nail with a hammer is a _____________.
Crash
Strike
Pull
Push
A force is a ___________________.
A pull between two objects
The amount of gravity between two objects
Pushing
Push or a pull
_________________ forces act on an unmoving object.
Balanced
Unbalanced
An object will have a change in motion when the forces acting on it are __________________.
Not equal
Equal
__________________ is necessary to move a car compared with a bicycle.
Less force
The same force
No force
More force
Objects can only move on a straight line.
False
True
Motion is the process of change in an objects ______________.
Position
Speed
Distance
Movement
Two children are holding one end of a rope each. They pull on the rope in opposite directions. The rope is not moving. What conclusion can be made about the forces that the children apply on the rope?
Forces are balanced. Children have same amount of strength.
Jacob is walking a small dog and a big dog. Suddenly, both dogs pull on opposite directions. Which direction will Jacob be pulled?
In the opposite direction of the dog that applies more force
Towards the bigger dog
Towards the smaller dog
Towards the dog that applies more force
The forces that make an object move are called __________________ forces.
Balanced
Unbalanced
Some kids played racing three toy cars. Each one started at the same time. The following drawing shows the end of the race.
All had same speed.
Car B
Car A
Car C
